单项选择题
A.becket bend B.two bowlines C.single carrick bend D.square knot
Temporary seizings on wire rope are made with（）.A.marli...
单项选择题Temporary seizings on wire rope are made with（）.
A.marline B.sail twine C.tape D.wire
Sufficient cargo tanks shall be（）prior to each ballast ...
单项选择题Sufficient cargo tanks shall be（）prior to each ballast voyage in order that，taking into account the tanker’s trading pattern and expected weather conditions，ballast water is put only into cargo tanks which have been crude oil washed.
A.inerted B.crude oil washed C.gas freed D.batterned down
Stuffer-braid rope has（）.A.a yarn coreB.no coreC.three ...
单项选择题Stuffer-braid rope has（）.
A.a yarn core B.no core C.three strands D.12 threads
