单项选择题

A vessel（）when underway shall so far as possible，keep out of the way of a vessel not under command.

A.having engaged in fishing
B.engaging in fishing
C.engaged in fish
D.engaged in fishing

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单项选择题

A.including
B.inclusive of
C.except that
D.other than

单项选择题

A.only at night
B.only during restricted visibility
C.at night and during restricted visibility
D.at all times

单项选择题

A.only in fog
B.only between the hours of sunset and sunrise
C.only when entering and leaving port
D.at all times