Releasing oil from the sea anchor of a survival craft may（）.<br>A:keep the propeller from being fouled<br>B:increase propeller speed<br>C:help calm the waves in the vicinity of the craft<br>D:increase the holding power of the sea anchor

Releasing oil from the sea anchor of a survival craft may（）.
A:keep the propeller from being fouled
B:increase propeller speed
C:help calm the waves in the vicinity of the craft
D:increase the holding power of the sea anchor

出自：海船船员证

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