A.MeetingB.OvertakingC.CrossingD.PassingA vessel approa……

单项选择题A vessel approaching a narrow channel shall（）.

A.avoid crossing the channel if it impedes another vessel navigating in the channel
B.not overtake any vessels within the channel
C.keep as close as possible to the edge of the channel on her port side
D.anchor only in the middle of the channel

单项选择题A vessel aground at night is required to show two red lights in a vertical line as well as （）.

A.not under command lights
B.restricted in her ability to maneuver lights
C.anchor lights
D.sidelights and a sternlight

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

单项选择题A vessel（）a crossing vessel，shall not normally enter a separation zone or cross a separation line.

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

单项选择题A proper look-out shall be maintained（）.

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