Vessels shall be deemed in sight of one another only when one _________from the other.(1.0)
A.can be observed visually B.can be observed by radar C.can be located on the radar D.can be heard正确答案A
Vessels shall be deemed in sight of one another only when one _________from the other.(1.0)
A.can be observed visually B.can be observed by radar C.can be located on the radar D.can be heard正确答案A
