單項(xiàng)選擇題When winds of force reach 10-11 in Beaufort Scale,usually we call such winds as().

A.Hurricane
B.Breeze
C.Storm
D.Gale


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1.單項(xiàng)選擇題If a weather bulletin shows the center of a low pressure system to be 100 miles due east of you,what winds can you expect in the Southern Hemisphere?().

A.South-southwesterly
B.North-northwesterly
C.South-southeasterly
D.North-northeasterly

2.單項(xiàng)選擇題West backing south-west gale 8 locally storm 10()then rain or sleet mainly good.

A.windy showers
B.showers with winds
C.wintry showers
D.showery winds

3.單項(xiàng)選擇題The dense black cumulonimbus clouds surrounding the eye of a hurricane are called().

A.Spiral rainbands
B.Cloud walls
C.Funnel clouds
D.Cyclonic spirals

4.單項(xiàng)選擇題After a cold front passes,the barometric pressure().

A.Drops,and the temperature drops
B.Drops,and the temperature rises
C.Rises,and the temperature drops
D.Rises,and the temperature rises

5.單項(xiàng)選擇題OWING TROPICAL STORM9706 CROSSING OUR/COURSE PLSPERMIT SHELTERING KAGOSHIMA KAIWAN. This cable indicates that().

A.she requested shelter permission
B.she intended to berth at port of KAGOSHIMA
C.she intended to change her course
D.she was reporting to the port that a tropical storm is coming

6.單項(xiàng)選擇題When force of winds reaches 10-11 in Beaufort scale,we usually call such wind().

A.Gale
B.Storm
C.Hurricane
D.Typhoon

7.單項(xiàng)選擇題Weather observations provided by each weather station include all of the following except().

A.temperature
B.visibility
C.predicted weather for the next twelve hours
D.barometric pressure and change in the last three hours

8.單項(xiàng)選擇題What benefit is a weather bulletin to a mariner().

A.It provides a legal reason to cancel a projected voyage
B.It allows the mariner to make long term weather forecasts
C.It is of little benefit since the weather changes frequently and rapidly
D.It gives the mariner time to prepare for weather changes

9.單項(xiàng)選擇題What will a veering wind do().

A.Change direction in a clockwise manner in the Northern Hemisphere
B.Circulate about a low pressure center in a counterclockwise manner in the Northern Hemisphere
C.Vary in strength constantly and unpredictably
D.Circulate about a high pressure center in a clockwise manner in the Southern Hemisphere

10.單項(xiàng)選擇題Of the following,()is not a wind.

A.Bora
B.Gust
C.Gregale
D.Floe