________ at 53N3 127E4 moving ely 12 kts with cold front from center passing 51N3 126E1 to 51N2 125E4 and warm front from 46N1 128E2 passing 40N2 125E2．A.Low 1002 HPAB.Low 1045 HPAC.High 1002 HPAD.High 1045 HPA
________ at 53N3 127E4 moving ely 12 kts with cold front from center passing 51N3 126E1 to 51N2 125E4 and warm front from 46N1 128E2 passing 40N2 125E2．
A.Low 1002 HPA
B.Low 1045 HPA
C.High 1002 HPA
D.High 1045 HPA
相关考题：
An administrator is creating a redundant environment for a current data center. A backup site must be available if the entire data center site should become unavailable. To reduce costs, this backup site does not need to be up and running at all times ready for failover. It must contain equipment and the ability to restore data from the data center.Which of the following site types should be considered to meet these requirements?（）A. Hot siteB. Warm siteC. Cold siteD. Active failover site
After the passage of a cold front the visibility ______.A.does not changeB.improves rapidlyC.improves only slightlyD.becomes poor
______ LOW ELY SLWLY WITH COLD FRONT FM CEN TO 12N 179W AND WARM FROM FM CEN TO 11N 171W．A.SHLWB.SCTDC.OBSD.SW
A generally circular low pressure area is called a(n)______．A.cycloneB.anticycloneC.cold frontD.occluded front
An occluded front is caused by a(n) ______.A.low pressure areaB.high pressure areaC.area of calm airD.cold front overtaking a warm front
Cyclones tend to move ______.A.perpendicular to the isobars in their warm sectorsB.parallel to the isobars in their warm sectorsC.parallel to the line of the cold frontD.perpendicular to the line of the cold front
An administrator is creating a redundant environment for a current data center. A backup site must be available if the entire data center site should become unavailable. To reduce costs， this backup site does not need to be up and running at all times ready for failover. It must contain equipment and the ability to restore data from the data center. Which of the following site types should be considered to meet these requirements？ （）A、 Hot siteB、 Warm siteC、 Cold siteD、 Active failover site
单选题The writer seems to imply that Europeans travel mostly for the reason that______.Athey want to see historic remains or religious spotsBthey are interested in different cultural traditions and social customsCthey would like to take pictures in front of famous sitesDthey wish to escape from the cold, dark and rainy days back at home
单选题Jim was absent from school for the whole week ______ a bad cold.Abecause ofBin addition toCaccording toDin front of
单选题On a working copy of a weather map，a cold front is represented by what color line? （）ARedBBlueCAlternating red and blueDPurple
单选题Cyclones tend to move（）.Aperpendicular to the isobars in their warm sectorsBparallel to the isobars in their warm sectorsCparallel to the line of the cold frontDperpendicular to the line of the cold front
单选题Advection fog may be formed by cold air passing over a（）.Acolder sea surfaceBwarmer sea surfaceCdry coastal plainsDhigh mountain or plateau
单选题A cold front moving in from the northwest can produce（）.Athunderstorms，hail，and then rapid clearingBincreasing cloud cover lasting for several daysClengthy wet weatherDlow ceilings with thick cirrus clouds
单选题The height of a tide can be increased by（）.AA storm surgeBA high pressure areaCThe jet streamDA cold front
单选题The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.Aremain constant along the tubes lengthBbe greatest in a single pass counter flow heat exchangerCremain constant throughout the heat exchangerDvary from section to section through out the heat exchanger
单选题In the Northern Hemisphere，winds veering sharply to the west or northwest with increasing speed are indications that a（）.Acold front has passedBlow pressure center is approachingCstationary front existsDhigh pressure center has passed
单选题A disadvantage of a four-stroke/cycle diesel engine is （）Ahigher working temperature of piston and cylinderBthe use of scavenge portsCfewer power strokes per revolution of the crankshaftDpart of the fuel is burned as the piston is moving away from top dead center
单选题请阅读 Passage 2，完成第 26~30小题。Passage 2 The common cold is the world's most widespread illness， which is plague that flesh receives.The most widespread fallacy of all is that colds caused by cold.They are not， They are caused by viruses passing on from person to person.You catch a cold by coming into contact， directly or indirectly， with someone who already has one.If cold causes colds， it would be reasonable to expect the Eskimos to suffer from them forever.But they do not.And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.During the First World War soldiers who spent long periods in the trenches， cold and wet，showed no increased tendency to catch colds.In the Second World War prisoners at the notorious Auschwitz concentration camp， naked and starving， were astonished to find that they seldom had colds.At the Common Cold Research Unit in England， volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time.After taking hot baths， they put on bathing suits， allowed themselves to be with cold water， and then stood about dripping wet in drafty room.Some wore wet socks all day while others exercised in the rain until close to exhaustion.Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.If， then， cold and wet have nothing to do with catching colds， why are they more frequent in the winter? Despite the most pains-taking research， no one has yet found the answer， One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times， and this makes it easier for cold viruses to be passed on.No one has yet found a cure for the cold.There are drugs and pain suppressors such as aspirin， but all they do is relieve the symptoms.Which of the following does not agree with the passage?AThe Eskimos do not suffer from colds all the time.BColds are not caused by cold.CPeople suffer from colds just because they like to stay indoors.DA person rnay catch a cold by touching someone who already has one.
单选题请阅读 Passage 2，完成第 26~30小题。Passage 2 The common cold is the world's most widespread illness， which is plague that flesh receives.The most widespread fallacy of all is that colds caused by cold.They are not， They are caused by viruses passing on from person to person.You catch a cold by coming into contact， directly or indirectly， with someone who already has one.If cold causes colds， it would be reasonable to expect the Eskimos to suffer from them forever.But they do not.And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.During the First World War soldiers who spent long periods in the trenches， cold and wet，showed no increased tendency to catch colds.In the Second World War prisoners at the notorious Auschwitz concentration camp， naked and starving， were astonished to find that they seldom had colds.At the Common Cold Research Unit in England， volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time.After taking hot baths， they put on bathing suits， allowed themselves to be with cold water， and then stood about dripping wet in drafty room.Some wore wet socks all day while others exercised in the rain until close to exhaustion.Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.If， then， cold and wet have nothing to do with catching colds， why are they more frequent in the winter? Despite the most pains-taking research， no one has yet found the answer， One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times， and this makes it easier for cold viruses to be passed on.No one has yet found a cure for the cold.There are drugs and pain suppressors such as aspirin， but all they do is relieve the symptoms.The author cites the Eskimos not suffering from common colds forever to indicate ____.Acommon colds are more severe than other plaguesBviruses are the factors causing common coldsCcommon colds are full of mythDthe idea that cold leads to colds doesn’t stand up
单选题请阅读 Passage 2，完成第 26~30小题。Passage 2 The common cold is the world's most widespread illness， which is plague that flesh receives.The most widespread fallacy of all is that colds caused by cold.They are not， They are caused by viruses passing on from person to person.You catch a cold by coming into contact， directly or indirectly， with someone who already has one.If cold causes colds， it would be reasonable to expect the Eskimos to suffer from them forever.But they do not.And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.During the First World War soldiers who spent long periods in the trenches， cold and wet，showed no increased tendency to catch colds.In the Second World War prisoners at the notorious Auschwitz concentration camp， naked and starving， were astonished to find that they seldom had colds.At the Common Cold Research Unit in England， volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time.After taking hot baths， they put on bathing suits， allowed themselves to be with cold water， and then stood about dripping wet in drafty room.Some wore wet socks all day while others exercised in the rain until close to exhaustion.Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.If， then， cold and wet have nothing to do with catching colds， why are they more frequent in the winter? Despite the most pains-taking research， no one has yet found the answer， One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times， and this makes it easier for cold viruses to be passed on.No one has yet found a cure for the cold.There are drugs and pain suppressors such as aspirin， but all they do is relieve the symptoms.The passage mainly discusses ____.Athe experiments on the common coldBthe cures about the common coldCwhy and how people catch coldsDthe continued spread of common colds
单选题请阅读 Passage 2，完成第 26~30小题。Passage 2 The common cold is the world's most widespread illness， which is plague that flesh receives.The most widespread fallacy of all is that colds caused by cold.They are not， They are caused by viruses passing on from person to person.You catch a cold by coming into contact， directly or indirectly， with someone who already has one.If cold causes colds， it would be reasonable to expect the Eskimos to suffer from them forever.But they do not.And in isolated arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.During the First World War soldiers who spent long periods in the trenches， cold and wet，showed no increased tendency to catch colds.In the Second World War prisoners at the notorious Auschwitz concentration camp， naked and starving， were astonished to find that they seldom had colds.At the Common Cold Research Unit in England， volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time.After taking hot baths， they put on bathing suits， allowed themselves to be with cold water， and then stood about dripping wet in drafty room.Some wore wet socks all day while others exercised in the rain until close to exhaustion.Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.If， then， cold and wet have nothing to do with catching colds， why are they more frequent in the winter? Despite the most pains-taking research， no one has yet found the answer， One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times， and this makes it easier for cold viruses to be passed on.No one has yet found a cure for the cold.There are drugs and pain suppressors such as aspirin， but all they do is relieve the symptoms.Volunteers taking part in the experiments in the Common Cold Research Unit ____.Aall suffered from cold and wetBnever caught coldsCcaught colds easilyDall caught colds because of the harsh environment
单选题When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher，the stream should be directed at the（）.Abase of the flames，moving the horn from side to side，following the flames upward as they diminishBtop of the flaming area，moving the horn from side to side，following the flames downward as they diminishCcenter of the flaming area，moving the horn vertically from top to bottomDbottom of the flaming area，moving the horn vertically to the top following the flames upward as they diminish
单选题A（）is the intersection of the surface of a sphere and a plane passing through the center of the sphere.Agreat circleBsmall circleClarge circleDgeneral circle
单选题Which of the following statements concerning frontal movements is TRUE（）.AThe temperature rises after a cold front passesBThe barometric pressure rises when a warm front passesCA cold front generally passes faster than a warm frontDA warm front usually has more violent weather associated with it than a cold front
单选题The writer seems to imply that Europeans travel mostly for the reason that _____.Athey want to see historic remains or religious spotsBthey are interested in different cultural traditions and social customsCthey would like to take pictures in front of famous sitesDthey wish to escape from the cold, dark and rainy days back at home
单选题After the passage of a cold front the visibility（）.Adoes not changeBimproves rapidlyCimproves only slightlyDbecomes poor
单选题The fog produced by warm moist air passing over a cold surface is called（）.Aconduction fogBradiation fogCfrontal fogDadvection fog