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單項選擇題

The principal danger from ice collecting on a vessel is the（）.

A.decrease in capabilities of radar
B.decrease in displacement
C.adverse effect on trim
D.loss of stability

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單項選擇題

Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.

A.back your engines
B.stop your engines and drift
C.answer with one prolonged blast
D.sound the danger signal