单项选择题
The largest waves (heaviest chop) will usually develop where the wind blows（）.
A.at right angles to the flow of the current
B.against the flow of the current
C.in the same direction as the flow of the current
D.over slack water
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相关考题
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单项选择题
The horse latitudes are characterized by（）.
A.weak pressure gradients and light，variable winds
B.the formation of typhoons or hurricanes in certain seasons
C.steady winds in one direction for six months followed by wind reversal for the next six months
D.steady winds generally from the southeast in the Southern Hemisphere -
单项选择题
The height of a wave is the vertical distance（）.
A.from the still water plane to the crest
B.from the still water plane to the trough
C.from crest to trough
D.between water levels at one-quarter of the wave's length -
单项选择题
The edge of a hurricane has overtaken your vessel in the Gulf of Mexico，and the northwest wind of a few hours ago has shifted to the west. This is an indication that you are located in the（）.
A.navigable semicircle
B.dangerous semicircle
C.low pressure area
D.eye of the storm
