你可能感興趣的試題

單項(xiàng)選擇題

Although KG for a vessel in lightweight is relatively high, the vessel is stiff because（）.

A.KM is small
B.KM is high
C.BL is smal
l D.KB is large

單項(xiàng)選擇題

An inert gas system installed on a tanker is designed to（）.

A.aid in the stripping and cleaning of cargo tanks
B.increase the rate of discharge of cargo
C.force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere
D.lower the oxygen levels inside cargo tanks, making explosion nearly impossible