单项选择题

Weather information is available from（）.

A.Commercial radio broadcasts
B.The Coast Guard on scheduled marine information broadcasts
C.VHF-FM continuous marine weather broadcasts provided by the National Weather Service
D.All of the above

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单项选择题

Weather forecast messages are usually（）.

A.Given only to TV stations
B.Transmitted only by commercial broadcast stations
C.Broadcast in plain language
D.Broadcast immediately on VHF Channel 16 and 2182 kHz

单项选择题

Weather conditions in the middle latitudes generally move（）．

A.Eastward
B.Westward
C.Northward
D.Southward

单项选择题

The winds you would expect to encounter in the North Atlantic between latitudes 5° and 30° are known as the（）.

A.Doldrums
B.Westerlies
C.Trades
D.Easterlies