单项选择题
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
A large basin cut into the shore，closed off by a caisso...
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
Which action will affect the trim of a vessel? （）A.Movi...
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
