单选题In the near future, starvation will be prevented by __________.AChinese agricultureBuse of new fertilizersCcontrol of the diseases and the heredity of plants and animalsDvitamin pills

单选题
In the near future, starvation will be prevented by __________.
A

Chinese agriculture

B

use of new fertilizers

C

control of the diseases and the heredity of plants and animals

D

vitamin pills


参考解析

解析:
第二段最后一句提到“Soon starvation will be headed off by the control of the diseases and the heredity of plants and animals…”(不久,饥饿将会通过控制疾病和动植物的遗传而得到阻止),故答案选C。

相关考题:

The majority of product defects could be prevented in most processes if manufactures would do the following:A . Increase the use of acceptance control charts instead of standard three-sigma control charts.B . Make a concerted effort to eliminate the potential for product defects in the design stage.C . Create a quality control department.D . A and B.E . A and C

48 The majority of product defects could be prevented in most processes if manufactures would do the following:A. Increase the use of acceptance control charts instead of standard three-sigma control charts.B. Make a concerted effort to eliminate the potential for product defects in the design stage.C. Create a quality control department.D. A and B.E. A and C

The text suggests that in the future we _______.A. may have to fight against more new diseasesB. may easily get infected by diseases from dogsC. should not be allowed to have petsD. should stop buying pets from Africa

About 2000 years ago, the chinese paper was made () the hair-like parts of certain plants.A、fromB、ofC、intoD、out of

The doctor told me I had to expect such things at my age and simply _____ some vitamin pills.() A. dissolvedB. stuffedC. recommendedD. prescribed

I’m looking forward _______ you in the near future.A、to seeingB、to seeC、seeingD、seen

We only had $100 and that was _______ to buy a new computer.A.nowhere near enoughB.near enough nowhereC.enough near nowhereD.near nowhere enough

( )is the process of implementing risk response plants,tracking?identified risks,monitoring residual risk,identifying new risk,and ecaluating risk process effectiveness throughout the project.A.Identity risksB.Control risksC.Plan risk responsesD.Plan risk management

He ventured that plants draw part of their nourishment from the air.A:dared B:endangeredC:agreed D:prevented

共用题干Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium(硒).The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China. The rate of cancer of stomach and esophagus in Linxian is the highest in China.A:RightB:WrongC:Not mentioned

共用题干Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium(硒).The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China.The results of the new study are unexpected.A:RightB:WrongC:Not mentioned

共用题干Food and CancerMedical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person's chance of developing cancer. A team of Chinese and American scientists did the study.They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study.They were from the northern central Chinese area of Linxian.Most of them took vitamins and minerals everyday for five years.Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus.Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate.Researchers divided those people into eight groups.Seven of the groups received different mixtures of vitamins and minerals daily.The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed.The eighth group received sugar pills that had no effect.Those who seemed to gain the most received a mixture of a form of vitamin A called β-carotene,vitamin E and the mineral selenium(硒).The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances.Researchers reported a 1 3 percent drop in cancer rates in those who took β-carotene,vitamin E and selenium.They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels.Scientists warn that it is too soon to know if the effect would be the same among people in other countries.They note that the people in Linxian eat foods that lack necessary vitamins and minerals.Chinese officials will continue to record the health records of the people in Linxian for many years.For now officials reportedly are considering using the results of the study.They want to find a way to improve the health of people in Linxian and other small towns in China.Among the scientists that did the study,there are more Chinese than Americans.A:RightB:WrongC:Not mentioned

共用题干What is Chinese New Year?In many parts of Asia,nations follow the lunar calendar rather than the Gregorian calendar used by the rest of the world.______(46)Many nations including Vietnam and Korea celebrate the lunar New Year with festivals and special foods.The Chinese,however,have turned the celebration into an art form:a 15 day festival called the Spring Festival in China,although it is known to the rest of the world as Chinese New Year.______(47)which is considered to be a particularly auspicious day.Children are given hong bao,lucky red envelopes full of money,and households exchange visits and gifts. Most celebrants at Chinese New Year wear red,which is a lucky color,and also refrain from reflecting on the past year and uttering unlucky words,as it is believed that the first day of the new year will determine your fortune in the months to come.Chinese New Year continues with 15 days of celebration and auspicious days,including a day to welcome the god of wealth,a day to celebrate farming and produce,and days to celebrate friends and family. Friendships and family relationships are a very important part of Chinese New Year,______(48)Numerous lucky foods are served throughout the Chinese New Year festival,and after all that rich dining,the 13th day of the festival is set aside for eating rice and bitter greens to cleanse the palate. on the 15th day,the Chinese New Year celebration culminates with the Lantern Festival, which is traditionally held at night. During the Lantern Festival,hundreds of citizens flood the street with lanterns representing wealth,animals,historical figures,plants,and a variety of other things.______(49)The Lantern Festival ends with a burst of fireworks to celebrate the upcoming year while celebrants eat special round dumplings to celebrate unity.In Vietnam,the new year festival is known as Tet Nguyen Dan,and is celebrated for seven days. Much like Chinese New Year,Tet is believed to be an especially auspicious period in Vietnam which will establish the fortunes of celebrants for the coming year.______(50)In Korea, the one day festival is known as Sol-nal,and is a time to reflect on ancestors and family.______(47)A: and a great deal of food and dinner invitations are exchanged as part of this tradition.B: The lanterns are paraded through towns and cities throughout China,Taiwan,and parts of the world with large Chinese communities.C: As a result,the year starts on a different day,usually in January or February by the Gregorian calendar.D: Chinese New Year is the most important festival in Chinese culture.E: Chinese New Year begins on the first day of the first moon of the year.F: Special foods are eaten and gifts are exchanged.

You use Microsoft .Net Framework 4 to create a Windows Form application. You created a new application, you then wrote the code below: Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture Which of the following options are TRUE? ()A、The user interface will make use of the currently configured culture settings in the Control Panel at present.B、The user interface will make use of new culture settings.C、The user interface will make use of the culture settings that were installed with the operating system.

In order to avoid shock, reduce the speed by ()(低速控制器)when the cover comes near the stoppers.A、control leverB、control panelC、control loopD、inching control

If you create your database using Oracle Managed Files (OMF), what is true?()A、You must use Oracle predefined names to identify raw partitions that will hold OMF structures. B、You must define directories for two online redo log groups and three copies of the control file. C、If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically. D、You must use only OMF data files when adding new tablespaces or data files to your database in the future.

单选题As they pertain to the near road mentioned in line 29, the life cycles mentioned in line 28 are those of ______.Athe plants that are destroyed by road constructionBthe animals that may be displaced by a new roadCeconomic and industrial trendsDthe substances that constitute the roadEthe companies involved in constructing the road

单选题We expect ____ large orders from Europe in the near future.AreceiveBto receiveCto receivingDbeing received

单选题Which of the following is NOT mentioned as the result of artificial selection by humanity?AMany new kinds of plants and animals are produced.BFinancial gain is increased considerably by producing better plants and animals.CHumans are able to control plant and animal reproduction for humans’ pleasure.DIt is necessary for humans to maintain the artificial environments.

单选题There is no evidence _____ oil price will come down in the near future.AwhichBthatCwhereDas

单选题It can be inferred from the passage that _____A“mental cosmetics” is already a reality.Ba new generation of mind-enhancing drugs may be a near future.CRitalin and Modafinil have no mind-enhancing properties.Dcognitive enhancers have been developed perfectly.

单选题We only had $100 and that was _____ to buy a new computer.Anowhere near enoughBnear enough nowhereCenough near nowhereDnear nowhere enough

单选题You have discovered that one of three control files has been lost. What steps would you follow to recover that control file?()   a. Shut down the database.  b. Restore a control-file copy from backup media.  c. Use the create control file command to create a new control file.  d. Copy the backup control file into place.  e. Create a new copy of the control file from one of the surviving control files.  f. Recover the database using the recover database using backup control file command.  g. Start up the database.Aa, b, f, gBc, f, gCa, d, f, gDa, f, gEa, e, g

单选题You use Microsoft .NET Framework 4 to create a Windows Forms application. You created a new application, you then wrote the code below: Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture; Which of the following options are TRUE?()AThe user interface will make use of the currently configured culture settings in the Control Panel at present.BThe user interface will make use of new culture settings.CThe user interface will have no culture settings.DThe user interface will make use of the culture settings that were installed with the operating system.

单选题In the near future, starvation will be prevented by __________.AChinese agricultureBuse of new fertilizersCcontrol of the diseases and the heredity of plants and animalsDvitamin pills

单选题If you create your database using Oracle Managed Files (OMF), what is true?()AYou must use Oracle predefined names to identify raw partitions that will hold OMF structures. BYou must define directories for two online redo log groups and three copies of the control file. CIf your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically. DYou must use only OMF data files when adding new tablespaces or data files to your database in the future.

单选题You use Microsoft .Net Framework 4 to create a Windows Form application. You created a new application, you then wrote the code below: Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture Which of the following options are TRUE? ()AThe user interface will make use of the currently configured culture settings in the Control Panel at present.BThe user interface will make use of new culture settings.CThe user interface will make use of the culture settings that were installed with the operating system.

问答题Green Gene Technology  For the past 10,000 years humans have influenced the plants they use at first unknowingly, later by design. Today’s crops have been created by a process of selection and classical breeding. More specific improvements in breeding will be possible in future.  Science has cracked the genetic information code. Green gene technology is an effective tool in crop breeding, enabling us to develop new crops even more rapidly and specifically. We can make them more efficient, optimizing their contents and valuable substances to suit the wishes and requirements of customers and the processing industry. Their metabolism can be individually modified, making them produce starch, protein and fats with special properties. Through gene transfer plants can be made more resistant to viruses, bacteria, harmful fungi and insect pests.  Genetically modified plants can be cultivated to possess improved stress behavior, with the result that they absorb water better in dry locations and can make more efficient use of soil nutrients. We can also optimize weed control. To do so, we make crops tolerant to environmentally sound and easily degradable herbicides. This is not as simple as it sounds. But we have been successful: Innovator has been on the Canadian market since 1995. This is the first oilseed rape variety to contain the glufosinate tolerance gene, facilitating the use of AgrEvo’s broad-spectrum herbicide liberty.  We are committed to green gene technology, with which we aim to make crop breeding even more efficient and environmentally friendly. Before being brought on to the market these genetically modified plants are researched and tested for years until the questions posed regarding their safety have been answered. This is a great opportunity for us to realize our vision: the use of faster methods to breed varieties which will continue to provide us with sufficient food and raw materials in future. Our fossil reserves will soon be exhausted. Experts estimate that we only have enough oil for another 43 years and natural gas for less than 60.  This means we must rethink and act accordingly, using new crop varieties to step up the move to replenishable sources of raw materials and energy. In other words, green gene technology is the key technology for sustainable agriculture.