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單項(xiàng)選擇題

The Muster List (“Station Bill”) of a ship must be signed by the（）.

A.person in charge
B.Coast Guard marine inspection officer
C.company safety director
D.entire crew

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The material used extensively as electrolytic protection around bronze propellers is（）.

A.Brass
B.Copper
C.Lead
D.Zinc

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The major components which determine the length of catenary in a deployed anchor cable are water depth，cable tension，and（）.

A.environmental forces
B.bottom conditions
C.cable weight
D.water density