单项选择题
A.waiting B.awaiting C.awaiting for D.waited
Shall we（）wait at the roadstead till there is a free be...
单项选择题Shall we（）wait at the roadstead till there is a free berth for us?
A.must B.ought to C.have to D.never
Routine radio communications should be no more than（）.A...
单项选择题Routine radio communications should be no more than（）.
A.one minute B.three minutes C.five minutes D.eight minutes
PORT A BIT SLUGGISH means that port rudder（）.A.answers ...
单项选择题PORT A BIT SLUGGISH means that port rudder（）.
A.answers very well B.rudder answers all right C.answers slow D.answers fast
