A rapid rise or fall of the barometer indicates ______.A.heavy rain within six hoursB.a decrease in wind velocityC.a change in the present weather conditionsD.that fog will soon set in
A rapid rise or fall of the barometer indicates ______.
A.heavy rain within six hours
B.a decrease in wind velocity
C.a change in the present weather conditions
D.that fog will soon set in
相关考题：
A slow，gradual fall of the barometer indicates approaching ______.A.gale force winds within 12 hoursB.blizzard conditionsC.deteriorating or unsettled weatherD.heavy，wind driven rain
A mercurial barometer at sea is subject to rapid variations in height ("pumping") due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n) ______.A.syphon barometerB.cistern barometerC.aneroid barometerD.fortin barometer
You are located within a stationary high pressure area．Your aneroid barometer is falling very slowly．This indicates a（n）______．A.Wind shift of 180°B.Large increase in wind velocityC.Decrease in the intensity of the systemD.Increase in the intensity of the system
A barometer showing falling pressure indicates the approach of a ______.A.high pressure systemB.low pressure systemC.high dew pointD.low dew point
If a hurricane several hundred miles away is moving in your general direction your barometer would ______.A.start to rise rapidlyB.start to fall gradullyC.rise slowly, begin “pumping” and then start a slow, steady fallD.remain steady
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
Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.（）A对B错
Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.（）
单选题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)（） .Awarm frontBtropical cycloneCanticycloneDcold front
单选题Not enough tourism can lead to _____.Aan increase of unemploymentBa decrease in tourist attractionsCthe higher cost of support facilitiesDa rise in price and a fall in pay
单选题A ship is side to be（）when the bow and stern rise and fall with the oncoming waves.ArollingBpitchingCheavingDswaying
单选题A stand-on vessel in a crossing situation is allowed to take action when （）.Aon a collision courseBthe vessels will pass within one mileCit becomes apparent to her that the give-way vessel is not taking appropriate actionDthe relative speed of the vessels indicates collision in less than six minutes
单选题A barometer showing falling pressure indicates the approach of a（）.Ahigh pressure systemBlow pressure systemChigh dew pointDlow dew point
单选题Cumulonimbus clouds can produce（）.Adense fog and high humidityBgusty winds，thunder，rain or hail，and lightningCclear skies with the approach of a cold frontDa rapid drop in barometric pressure followed by darkness
单选题If a hurricane several hundred miles away is moving in your general direction your barometer would（）.Astart to rise rapidlyBstart to fall graduallyCrise slowly,begin pumping and then start a slow,steady fallDremain steady
单选题What indicates that a tropical cyclone may be within 500 to 1，000 miles of your position?（）AA pumping of the barometer up and down a few millibarsBA sudden wind shift from southwest to northwest followed by steadily increasing windsCThe normal swell pattern becoming confused，with the length of the swell increasingDAn overcast sky with steadily increasing rain from nimbostratus clouds
单选题When observing a rapid rise in barometric pressure，you may expect（）.AClear weather with no wind，but the possibility of rain or snow within 24 hoursBDeteriorating weather with rain or snowCHeavy rain or severe thundershowersDClearing weather，possibly accompanied by high winds
单选题When you keep a gangway watch, you should （）the mooring lines according to the rise and fall of the tide.AadjustedBadjustingCadjustsDadjust
单选题The longer the ignition delay period occurs in a diesel engine, the （）.Aless fuel will enter the cylinderBlower will be cylinder compression temperaturesCmore complete will be fuel combustionDmore rapid will be the rise in combustion pressure
单选题A rapid rise or fall of the barometer indicates（）.Aheavy rain within six hoursBa decrease in wind velocityCa change in the present weather conditionsDthat fog will soon set in
单选题A mercurial barometer at sea is subject to rapid variations in height (“pumping”) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n)（）.Asyphon barometerBcistern barometerCaneroid barometerDfortin barometer
单选题AIt is the regular rise and fall of ocean waters.BIt is the destructive wall of water.CIt is the sudden rise of ocean waters.DIt is the underwater earthquake.
判断题Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.（）A对B错
单选题A slow，gradual fall of the barometer indicates approaching（）.Agale force winds within 12 hoursBblizzard conditionsCdeteriorating or unsettled weatherDheavy，wind driven rain