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

单项选择题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

单项选择题The capacity of any liferaft on board a vessel can be determined by（）.

A.examining the Certificate of Inspection
B.examining the plate on the outside of the raft container
C.referring to the station bill
D.referring to the shipping articles

单项选择题That the（）showed that the ship complied with the requirements of the said Convention.

A.looking
B.seeing
C.sightseeing
D.inspection

单项选择题Please mark (out) one of the most important register of shipping in the world. （）.

A.HK MARDEP
B.COSCO
C.Lloyd's Society
D.Liberia Shipping Registry

单项选择题Please let me（）a set of import manifests．

A.to have
B.have
C.having
D.to get