单项选择题

If the current and wind are in the same direction，the sea surface represents a wind speed （）.

A.lower than actually exists
B.higher than actually exists
C.that actually exists
D.that has no proportional relationship

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单项选择题

If the current and wind are in opposite directions，the sea surface represents（）.

A.a greatly reduced wind speed
B.a higher wind speed than what really exists
C.a lower wind speed than what really exists
D.more turbulent winds

单项选择题

If help has not arrived in 10-12 hours after abandoning a vessel in a rescue boat，you should （）.

A.go in one direction until the fuel runs out
B.steer a course for the nearest land
C.steer a course for the nearest sea lane
D.shut down the engines if installed and put out the sea anchor