單項選擇題

If you wear extra clothing when entering the water after abandoning ship it will（）.

A.weigh you down
B.preserve body heat
C.reduce your body heat
D.make it more difficult to breathe

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單項選擇題

If you shorten the scope of anchor cable，your anchor’s holding power（）.

A.decreases
B.increases
C.remains the same
D.has no relation to the scope

單項選擇題

If you saw flames aboard a vessel but could see the vessel was not on fire，you would know that the（）.

A.crew was trying to get warm
B.vessel required immediate assistance
C.vessel was attempting to attract the attention of a pilot boat
D.vessel was being illuminated for identification by aircraft

If you wear extra clothing when entering the water after abandoning ship it will（）.

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If you shorten the scope of anchor cable，your anchor’s holding power（）.

If you saw flames aboard a vessel but could see the vessel was not on fire，you would know that the（）.

If you saw flames aboard a vessel but could see the vessel was not on fire，you would know that the（）.