单选题As a cold front passes an observer，pressure（）.Adrops and winds become variableBrises and winds become gustyCdrops and winds become gustyDrises and winds become variable
单选题
As a cold front passes an observer，pressure（）.
A
drops and winds become variable
B
rises and winds become gusty
C
drops and winds become gusty
D
rises and winds become variable
参考解析
解析：
暂无解析
相关考题：
Cumulonimbus clouds are most likely to accompany a(n) ______.A.high pressure systemB.cold frontC.warm frontD.occluded front
Steam smoke will occur when ______.A.extremely cold air from shore passes over warmer waterB.warm dry air from shore passes over cooler waterC.cold ocean water evaporates into warm airD.cool rain passes through a warm air mass
When a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）______．A.High pressure areaB.Extratropical low-pressure systemC.Tropical stormD.Easterly wave
A generally circular low pressure area is called a(n)______．A.cycloneB.anticycloneC.cold frontD.occluded front
After a cold front passes the barometric pressure usually ______.A.fluctuatesB.remains the sameC.remains the same, with clouds forming rapidlyD.rises, often quite rapidly, with clearing skies
After a cold front passes，the barometric pressure______．A.drops，and the temperature dropsB.drops ， and the temperature risesC.rises，and the temperature dropsD.rises，and the temperature rises
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
As a cold front passes an observer, pressure ______.A.drops and winds become variableB.rises and winds become gustyC.drops and winds become gustyD.rises and winds become variable
Brief, violent showers frequently accompanied by thunder and lightning are usually associated with ______.A.passage of a warm frontB.winds shifting counterclockwise in the Northern HemisphereC.stationary high pressure systemsD.passage of a cold 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
In the Northern Hemisphere, gusty winds shifting clockwise, a rapid drop in temperature, thunderstorms or rain squalls in summer ( frequent rain / snow squalls in winter ) then a rise in pressure followed by clearing skies, indicate the passage of a(n) ______.A.warm frontB.tropical cycloneC.anticycloneD.cold front
单选题Steady precipitation is typical of（）.Acoming cold weather conditionsBa warm front weather conditionChigh pressure conditionsDscattered cumulus clouds
单选题As the refrigerant passes through the valve orifice, its pressure is reduced and part of the refrigerant turns into （）.AliquidBoily mixtureCemulsionDvapor
单选题Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.AExpect to see cirrus clouds followed by altostratus and nimbostratus cloudsBAlter course to remain in the navigable semicircleCPrepare for gusty winds，thunderstorms，and a sudden wind shiftDExpect clear weather，with steady winds and pressure，until the front passes
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An occluded front is caused by a(n)（）.Alow pressure areaBhigh pressure areaCarea of calm airDcold front overtaking a warm front
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Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.AHigh pressure areaBExtratropical low-pressure systemCTropical stormDEasterly wave
单选题On the approach of a warm front the barometric pressure usually（）.AfallsBrisesCis steadyDis unreliable
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Cyclones that have warm sectors usually move（）.AwesterlyBparallel to the isobars in the warm sectorCtoward the nearest high pressure areaDfaster than the accompanying cold front
单选题Steam smoke will occur when（）.Aextremely cold air from shore passes over warmer waterBwarm dry air from shore passes over cooler waterCcold ocean water evaporates into warm airDcool rain passes through a warm air mass
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If an observer in the Northern Hemisphere faces the surface wind，the center of low pressure is to his（）.Aleft，slightly behind himBright，slightly behind himCleft，slightly in front of himDright，slightly in front of him
单选题After a cold front passes the barometric pressure usually（）.AfluctuatesBremains the sameCremains the same，with clouds forming rapidlyDrises，often quite rapidly，with clearing skies
单选题After the passage of a cold front the visibility（）.Adoes not changeBimproves rapidlyCimproves only slightlyDbecomes poor
单选题After a cold front passes，the barometric pressure（）.Adrops，and the temperature dropsBdrops，and the temperature risesCrises，and the temperature dropsDrises，and the temperature rises