单选题Passage2For centuries in Spain and Latin America,heading home for lunch and a snooze with the family was something like a national right,but with global capitalism standardizing work hours,this idyllic habit is fast becoming an endangered pleasure.Ironically,all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey,less than 25 percent of Spaniards still enjoy siestas.And like Spain,much of Latin America has adopted Americanized work schedules,too,with shortened lunch times and more rigid work hours.Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6p.m.Before the mandate,workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industriouscounterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, unemployment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind,a former NASA scientist and founder of Solutions in Cupertino, Calif, which educates businesses about the advantages of sanctioning naps, we' re biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They' ve been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night(adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.The wordcovetin Paragraph 3 most likely means________.AneedBdesireClackDvalue

单选题
Passage2For centuries in Spain and Latin America,heading home for lunch and a snooze with the family was something like a national right,but with global capitalism standardizing work hours,this idyllic habit is fast becoming an endangered pleasure.Ironically,all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey,less than 25 percent of Spaniards still enjoy siestas.And like Spain,much of Latin America has adopted Americanized work schedules,too,with shortened lunch times and more rigid work hours.Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6p.m.Before the mandate,workers would break up the shift-going home midday for a long  break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industriouscounterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, unemployment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind,a former NASA scientist and founder of Solutions in Cupertino, Calif, which educates businesses about the advantages of sanctioning naps, we' re biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They' ve been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night(adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.The wordcovetin Paragraph 3 most likely means________.
A

need

B

desire

C

lack

D

value


参考解析

解析:

相关考题:

Two-third of the cropland in the United States is planted in crops destined for export-to Europe, Asia, Africa and Latin America.() 此题为判断题(对,错)。

The modern languages Harvard taught in 1825 were______.A. Latin and GreekB. Latin, Green, French and GermanC. American history and GermanD. French and German

For centuries, the Atlantic Ocean kept the America from ____________ by the people of Europe.A、discoveringB、being discoveringC、being discoveredD、discovered

正确描述创建一个一级居中标题的句法是______。A.Heading TextB. 正确描述创建一个一级居中标题的句法是______。A.<HO ALIGN=CENTER>Heading Text</HO>B.<H1 ALIGN=CENTER>Heading Text</H1>C.<H ALIGN=CENTER>Heading Text</H>D.<HT ALIGN=CENTER>Heading Text</HT>

If the compass heading and magnetic-heading are the same then ______.A.the deviation has been offset by the variationB.there is something wrong with the compassC.the compass is being influenced by nearby metalsD.there is no deviation on that heading

Magnetic heading differs from compass heading by______.A.compass errorB.true headingC.variationD.Deviation

Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the familywas some thing like a national right, but with global capitalism standardizing work hours, this idyllichabit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers arebeginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And likeSpain, much of Latin America has adopted Americanized work schedules, too, with shortened lunchtimes and more rigid work hours. Last year the Mexican government passed a law limiting lunchbreaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m.Before the mandate, workers would break up the shift--going home midday for a long break withthe family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece,Italy and Portugal, too, as they rush to join their more "industrious" counterparts in the globalmarket.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates withlaziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll,65percent of adults do not get enough sleep. Numerous scientific studies document the benefits of naptaking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Inter-nal Medicine. The researchers found that fatigue harms not only marital and social relations butworker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino,Calif., which educates businesses about the advantages of sanctioning naps, we′ re biologically pro-grammed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper--called thecircadian clock--operates on a 24-hour rotation and every 12 hours there′s a dip. In accordancewith these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for twohours. Latin American countries, asserts Rosekind, have had it right all along. They′ ve been in syncwith their clocks; we haven′t.Since most of the world is sleep-deprived, getting well under the recommended eight hours anight (adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Napsare even more useful now that most of us forfeit sleep because of insane work schedules, longercommute times and stress, In a study published last April, Brazilian medical researchers noted thatblood pressure and arterial blood pressure dropped during a siesta.We can infer from the second paragraph that Mexican workers now __________.A.work fewer hours than in the pastB.get home from work much later than in the pastC.work more reasonable hours than in the pastD.finish the workday earlier than in the past

Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the familywas some thing like a national right, but with global capitalism standardizing work hours, this idyllichabit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers arebeginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And likeSpain, much of Latin America has adopted Americanized work schedules, too, with shortened lunchtimes and more rigid work hours. Last year the Mexican government passed a law limiting lunchbreaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m.Before the mandate, workers would break up the shift--going home midday for a long break withthe family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece,Italy and Portugal, too, as they rush to join their more "industrious" counterparts in the globalmarket.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates withlaziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll,65percent of adults do not get enough sleep. Numerous scientific studies document the benefits of naptaking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Inter-nal Medicine. The researchers found that fatigue harms not only marital and social relations butworker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino,Calif., which educates businesses about the advantages of sanctioning naps, we′ re biologically pro-grammed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper--called thecircadian clock--operates on a 24-hour rotation and every 12 hours there′s a dip. In accordancewith these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for twohours. Latin American countries, asserts Rosekind, have had it right all along. They′ ve been in syncwith their clocks; we haven′t.Since most of the world is sleep-deprived, getting well under the recommended eight hours anight (adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Napsare even more useful now that most of us forfeit sleep because of insane work schedules, longercommute times and stress, In a study published last April, Brazilian medical researchers noted thatblood pressure and arterial blood pressure dropped during a siesta.The author suggests that most Americans feel that__________.A.Spanish culture is inefficientB.nap-taking will put their jobs at riskC.nap-taking is a sign of lazinessD.they get plenty of sleep

Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the familywas some thing like a national right, but with global capitalism standardizing work hours, this idyllichabit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers arebeginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And likeSpain, much of Latin America has adopted Americanized work schedules, too, with shortened lunchtimes and more rigid work hours. Last year the Mexican government passed a law limiting lunchbreaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m.Before the mandate, workers would break up the shift--going home midday for a long break withthe family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece,Italy and Portugal, too, as they rush to join their more "industrious" counterparts in the globalmarket.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates withlaziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll,65percent of adults do not get enough sleep. Numerous scientific studies document the benefits of naptaking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Inter-nal Medicine. The researchers found that fatigue harms not only marital and social relations butworker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino,Calif., which educates businesses about the advantages of sanctioning naps, we′ re biologically pro-grammed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper--called thecircadian clock--operates on a 24-hour rotation and every 12 hours there′s a dip. In accordancewith these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for twohours. Latin American countries, asserts Rosekind, have had it right all along. They′ ve been in syncwith their clocks; we haven′t.Since most of the world is sleep-deprived, getting well under the recommended eight hours anight (adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Napsare even more useful now that most of us forfeit sleep because of insane work schedules, longercommute times and stress, In a study published last April, Brazilian medical researchers noted thatblood pressure and arterial blood pressure dropped during a siesta.This text is mainly about __________.A.the health benefits of afternoon napsB.the negative effects of sleep-deprivation on health and worker productivityC.the importance of the siesta tradition in Spain and Latin AmericaD.the siesta tradition and its health benefits

单选题请阅读Passage 2,完成第 26~30小题。Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the family was some thing like a national right, but with global capitalism standardizing work hours, this idyllic habit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And like Spain, much of Latin America has adopted Americanized work schedules, too, with shortened lunch times and more rigid work hours. Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m. Before the mandate, workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industrious counterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino, Calif., which educates businesses about the advantages of sanctioning naps, we're biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They've been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night (adults get an average of 6.5 hours nightly), we usually operate on a kind ofidle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.The word covet in Paragraph 3 most likely means ____.AneedBdesireClackDvalue

单选题Which of the following statements is true according to what was said in the recording?AThe dollar rose to a new high against the curd.BThe American economy has rebounded.CJapan’s economy has not bottomed out yet.DThe performance of many economies in Latin America is less than expected.

填空题HOM基因与昆虫胚胎()轴的发育有关。

单选题Magnetic heading differs from compass heading by().Acompass errorBtrue headingCvariationDdeviation

填空题HOM基因指导昆虫()的发育。

填空题果蝇的触角变成腿与HOM基因中的()突变有关。

单选题By saying “condemning all of us to remain boys and girls forever, jogging and doing push-ups against eternity”, the author means that .Ashe thinks people shouldn’t be so concerned about physical fitnessBshe feels too old and tired to do such hard exerciseCAmerican society is overemphasizing youth and physical appearanceDwhat happened to children centuries ago may occur to adults in America soon

单选题If the magnetic heading is greater than the compass heading,the deviation is().AeastBwestCnorthDsouth

单选题If the compass heading and the magnetic heading are the same then().Athe deviation has been offset by the variationBthere is something wrong with the compassCthe compass is being influenced by nearby metalsDthere is no deviation on that heading

单选题The standard magnetic compass heading differs from the true heading by().Acompass errorBlatitudeCvariationDdeviation

单选题Passage2For centuries in Spain and Latin America,heading home for lunch and a snooze with the family was something like a national right,but with global capitalism standardizing work hours,this idyllic habit is fast becoming an endangered pleasure.Ironically,all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey,less than 25 percent of Spaniards still enjoy siestas.And like Spain,much of Latin America has adopted Americanized work schedules,too,with shortened lunch times and more rigid work hours.Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6p.m.Before the mandate,workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industriouscounterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, unemployment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind,a former NASA scientist and founder of Solutions in Cupertino, Calif, which educates businesses about the advantages of sanctioning naps, we' re biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They' ve been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night(adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.The wordcovetin Paragraph 3 most likely means________.AneedBdesireClackDvalue

单选题Passage2For centuries in Spain and Latin America,heading home for lunch and a snooze with the family was something like a national right,but with global capitalism standardizing work hours,this idyllic habit is fast becoming an endangered pleasure.Ironically,all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey,less than 25 percent of Spaniards still enjoy siestas.And like Spain,much of Latin America has adopted Americanized work schedules,too,with shortened lunch times and more rigid work hours.Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6p.m.Before the mandate,workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industriouscounterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, unemployment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one 1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind,a former NASA scientist and founder of Solutions in Cupertino, Calif, which educates businesses about the advantages of sanctioning naps, we' re biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They' ve been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night(adults get an average of 6.5 hours nightly), we usually operate on a kind of idle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.This text is mainly about_______.Athe health benefits of afternoon napsBthe negative effects of sleep-deprivation on health and worker productivityCthe importance of the siesta tradition in Spain and Latin AmericaDthe siesta tradition and its health benefits

单选题The latter half of the last sentence in Paragraph 3, “or one tourist for every person living in Spain”, means _____.Aall the 37 million people living in Spain are touristsBevery year almost as many tourists visit Spain as there are people living in that countryCevery person living in Spain has to take care of a touristDevery Spanish is visited by a tourist every year

单选题请阅读Passage 2,完成第 26~30小题。Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the family was some thing like a national right, but with global capitalism standardizing work hours, this idyllic habit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And like Spain, much of Latin America has adopted Americanized work schedules, too, with shortened lunch times and more rigid work hours. Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m. Before the mandate, workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industrious counterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino, Calif., which educates businesses about the advantages of sanctioning naps, we're biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They've been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night (adults get an average of 6.5 hours nightly), we usually operate on a kind ofidle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.We can infer from the second paragraph that Mexican workers now ____.Awork fewer hours than in the pastBget home from work much later than in the pastCwork more reasonable hours than in the pastDfinish the workday earlier than in the past

问答题Practice 2  The news couldn’t be worse. Three years of recession or anemic economic growth, Argentina’s debt default and collapse and—more recently—Bolivia’s president run out of office by indigenous people fed up with his pro-business, pro-Washington agenda. Taken together, these trials have seemingly erased the promise of prosperity that wafted across the region a decade ago. Now there’s the specter of a return to the dark days of the 1970s and 80s when economic and political chaos were the norm. Social eruptions have prompted a wide-ranging and contentious reappraisal of the economic orthodoxy—the neoliberal model that has shaped policy in Latin America for the past 15 years. Market-oriented structural reforms have succeeded in a few crucial ways: they ended the ruinous era of hyperinflation, and inculcated a sense of fiscal responsibility among profligate governments. But belt-tightening has not led to the robust economic performance promised when reforms began. After enjoying encouraging GDP expansion in the early and mid-1990s, Latin America has stumbled through about five years of economic stagnation that have left the region’s have-nots in a surly mood. Latin America desperately wants increased access to markets in the United States and Europe, but the region doesn’t want to pursue trade deals on what it perceives to be unfair terms. (Newsweek)

单选题You are developing a Windows Presentation Foundation (WPF) application. The application contains stylized body text and heading text. The heading text is a slight variation of the body text. You need to ensure that if the body text changes, the heading text automatically inherits those changes. What should you do ?()ASet the Value property of the style setter to point to a static resourceBSet the BasedOn property of the heading style to point to a static resource for the body text styleCSet the Key property of the heading style to start with the name of the body text styleDSet the TargetType property of the heading style to TextBlock

单选题Latin America, with its many diverse musical cultures, is a case in point.Aanimated Belevated Cvaried Ddignified

单选题请阅读Passage 2,完成第 26~30小题。Passage 2For centuries in Spain and Latin America, heading home for lunch and a snooze with the family was some thing like a national right, but with global capitalism standardizing work hours, this idyllic habit is fast becoming an endangered pleasure. Ironically, all this is happening just as researchers are beginning to note the health benefits of the afternoon nap.According to a nationwide survey, less than 25 percent of Spaniards still enjoy siestas. And like Spain, much of Latin America has adopted Americanized work schedules, too, with shortened lunch times and more rigid work hours. Last year the Mexican government passed a law limiting lunch breaks to one hour and requiring its employees to work their eight-hour shift between 7 a.m. and 6 p.m. Before the mandate, workers would break up the shift-going home midday for a long break with the family and returning to work until about 9 or 10 p.m. The idea of siesta is changing in Greece, Italy and Portugal, too, as they rush to join their more industrious counterparts in the global market.Most Americans I know covet sleep, but the idea of taking a nap mid-afternoon equates with laziness, un employment and general sneakiness. Yet according to a National Sleep Survey poll, 65 percent of adults do not get enough sleep. Numerous scientific studies document the benefits of nap taking, including one1997 study on the deleterious effects of sleep deprivation in the journal Internal Medicine. The researchers found that fatigue harms not only marital and social relations but worker productivity.According to Mark Rosekind, a former NASA scientist and founder of Solutions in Cupertino, Calif., which educates businesses about the advantages of sanctioning naps, we're biologically programmed to get sleepy between 3 and 5 p.m. and 3 and 5 a.m. Our internal timekeeper-called the circadian clock-operates on a 24-hour rotation and every 12 hours there's a dip. In accordance with these natural sleep rhythms, Rosekind recommends that naps be either for 40 minutes or for two hours. Latin American countries, asserts Rosekind, have had it right all along. They've been in sync with their clocks; we haven't.Since most of the world is sleep-deprived, getting well under the recommended eight hours a night (adults get an average of 6.5 hours nightly), we usually operate on a kind ofidle midday. Naps are even more useful now that most of us forfeit sleep because of insane work schedules, longer commute times and stress, In a study published last April, Brazilian medical researchers noted that blood pressure and arterial blood pressure dropped during a siesta.This text is mainly about ____.Athe health benefits of afternoon napsBthe negative effects of sleep-deprivation on health and worker productivityCthe importance of the siesta tradition in Spain and Latin AmericaDthe siesta tradition and its health benefits

单选题Kwashiorkor ______.Ais especially harmful to childrenBis caused by starvationCaffects adults onlyDis confined to Latin America