单项选择题
A sling is a device used in（）.
A.hoisting cargo aboard a vessel
B.hoisting personnel aboard a vessel
C.securing a small boat to a large vessel
D.hoisting the anchor
点击查看答案&解析
相关考题
-
单项选择题
A large basin cut into the shore，closed off by a caisson，and used for drydocking of ships is known as a（）.
A.slipway
B.graving dock
C.ground warp
D.caisson dock -
单项选择题
Which action will affect the trim of a vessel? （）
A.Moving high weights lower
B.Adding weight at the tipping center
C.Moving a weight forward
D.Moving lower weight high
