单选题A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.Aforward spring line and going slow ahead on the inboard engineBafter spring line and going slow astern on the outboard engineCforward spring line and going slow ahead on both enginesDforward spring line and going slow ahead on the outboard engine
单选题
A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.
A
forward spring line and going slow ahead on the inboard engine
B
after spring line and going slow astern on the outboard engine
C
forward spring line and going slow ahead on both engines
D
forward spring line and going slow ahead on the outboard engine
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