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单选题
The speed at which a storm centre moves is the（）.
A
speed of movement
B
speed of advance
C
speed of storm
D
storm movement speed
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单选题Which oil is not suitable for use as storm oil?（）A
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the wind speed is greater here since the wind is traveling in the same general direction as the storm's trackB
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单选题Sometimes a tropical storm moves so slowly that a vessel，if astern of it，can（）it.A
crossB
approachC
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run into
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