单项选择题

In a twin screw ship going half-ahead , both screws turning outboard and the rudder amidships,no current or wind,the vessel will（）.

A.move bodily to port
B.move bodily to starboard
C.move in a zig-zag motion
D.steer a fairly straight course

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单项选择题
In case of accidents（）the risk of sinking,all effective measures shall be taken to steer clear of the fairway to avoid（）the traffic.

A.involving/impeding
B.involved/to impede
C.involving/to impede
D.involved/impeding
单项选择题
In each inflatable rescue boat , what piece of equipment is provided to make quick , emergency,temporary repairs to a large hole in a raft?（）.

A.No equipment is provided
B.Glue and rubber patches
C.Several various-sized sealing clamps
D.Self-adhesive rubberized canvas patches
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