To ensure the best results during the Mediterranean moor，the chains should（）.

单项选择题There are two classes of vessels which，to the extent necessary to carry out their work，do not have to comply with the rule regarding traffic separation schemes. One of these is a vessel（）.

A.engaged in fishing in a traffic lane
B.servicing a submarine cable
C.towing another
D.engaged on pilotage duty

单项选择题The ship is moored（）buoys.

A.of
B.on
C.alongside
D.to

单项选择题The ship（）on a low rock was broken in two by the waves.

A.that had been driven
B.had been driven
C.have been driven
D.which to have been driven

单项选择题The safest device used to secure the end of the pendant wire when it is initially passed to the anchor handling vessel is a（）.

A.pelican hook
B.hydraulic deck stopper
C.connecting link
D.shackle

单项选择题The purpose of the stripping bar on an anchor windlass is to（）.

A.clean off any mud that may have accumulated on the chain
B.engage or disengage the wildcat
C.fairlead the chain from the hawse pipe to the wildcat
D.prevent the chain from fouling the wildcat