单项选择题
A.absorb moisture from hygroscopic cargoes B.fill gaps between layers of cargo C.wrap cargo that leaks from packaging D.keep bagged cargo leakage from contacting the deck
A.stomach B.lower intestines C.inner ear D.bladder
A.keep the propeller from being fouled B.increase propeller speed C.help calm the waves in the vicinity of the craft D.increase the holding power of the sea anchor