航海英语6050之--12航海气象

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1、航海英语6050之--12航海气象十二航海气象12.1航海气象基本知识[3251]______causingstrongwindsandroughseanorthwestBayofBiscay．A.StronglowpressureB.StronghighpressureC.SteeppressuregradientD.SteepgradientpressureKEY:C[3252]Aboundarybetweentwoairmassesisa(n)______.A.lapserateB.isobarC.

2、frontD.continentKEY:C[3253]Acloudofmarkedverticaldevelopment(oftenanvil-shaped)wouldbeclassifiedas______.A.cirrusB.cirrocumulusC.altocumulusD.cumulonimbusKEY:D[3254]Acloudsequenceofcirrus，cirrostratus，andaltostratuscloudsfollowedbyrainusuallysignifiesthea

3、pproachofa(n)______.A.occludedfrontB.stationaryfrontC.warmfrontD.coldfrontKEY:C[3255]Acycloneinitsfinalstageofdevelopmentiscalleda(n)______.A.tornadoB.anticycloneC.occludedcycloneoroccludedfrontD.polarcycloneKEY:C[3256]Afrontalthunderstormiscausedby______

4、.A.pronouncedlocalheatingB.windbeingpushedupamountainC.awarmairmassrisingoveracoldairmassD.anincreasedlapseratecausedbyadvectionofwarmsurfaceairKEY:C[3257]Agenerallycircularlowpressureareaiscalleda(n)______.A.cycloneB.anticycloneC.coldfrontD.occludedfront

5、KEY:A[3258]Ahygrometerisadeviceusedfordetermining______.A.theabsolutetemperatureB.atmosphericpressureC.windvelocityD.relativehumidityKEY:D[3259]Alineofclouds，sharpchangesinwinddirection，andsquallsaremostfrequentlyassociatedwitha(n)______.A.occludedfrontB.

6、warmfrontC.coldfrontD.warmsectorKEY:C[3260]Aseabreezeisawind______.A.thatblowstowardstheseaatnightB.thatblowstowardsanislandduringthedayC.causedbycoldairdescendingacoastalinclineD.causedbythedistantapproachofahurricaneKEY:B[3261]Aseriesofbriefshowersaccom

7、paniedbystrong，shiftingwindsmayoccuralongorsomedistanceaheadofa(n)______.A.upperfrontaloftB.cycloneC.occludedfrontD.coldfrontKEY:D[3262]Awarmairmassischaracterizedby______.A.stabilityB.instabilityC.gustywindsD.goodvisibilityKEY:A[3263]AccordingtoBuysBallo

8、t'slaw，whenanobserverintheNorthernHemisphereexperiencesanorthwestwind，thecenteroflowpressureislocatedtothe______.A.northeastB.west-southwestC.northwestD.south-southeastKEY:A[3264]Advectionfogholdslongestoverwhichpor