单项选择题
（）is used for heaving up and slacking away the anchor and chain.
A.A winch B.A windlass C.A deck crane D.A lifeboat engine
单项选择题 （）it rain tomorrow morning, the loading（）.
单项选择题 （）of the following need not be entered in the official logbook?
单项选择题 （）of the following statements is incorrect regarding a fire and boat drill ao board your cargo vessel.
