单项选择题
A. chain pipe B. chain locker C. hawse pipe D. anchor
Lower the anchor until it is clear of （）（锚链筒）.A. chain ...
单项选择题Lower the anchor until it is clear of （）（锚链筒）.
A. chain locker B. hawse pipe C. windlass D. anchor chain
The （）(系泊缆绳)consist of a head line ,two breast lines, t...
单项选择题The （）(系泊缆绳)consist of a head line ,two breast lines, two spring lines and a stern line.
A. moor lines B. mooring lines C. unmoor lines D. unmooring lines
black cone（）A.黑柱体B.黑球体C.黑锥形体D.黑菱形体
单项选择题black cone（）
A.黑柱体 B.黑球体 C.黑锥形体 D.黑菱形体
