When a vessel is aground,().
A.She is underway
B.She is not underway
C.Whether she is underway cannot be determined
D.She might be or not be underway
第1题
A.channel 6
B.channel 13
C.channel 16
D.channel 70
第2题
A.either
B.the master
C.the Shipowner
D.neither
第3题
A.be considered
B.be prudent
C.be bold enough
D.be carelessness
第4题
A.Two masthead lights
B.One masthead light and a sidelight
C.Both sidelights
D.Stern light only
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