单项选择题
A.will contain no additional moisture B.has the lowest relative humidity C.cannot keep up its moisture D.has a low absolute humidity
When cargo is shifted from the main deck into the lower...
单项选择题When cargo is shifted from the main deck into the lower hold of a vessel,（）.
A.The metacenter will move downward B.The GM will increase C.The center of buoyancy will move upward D.The list of the vesel will become great
When liquid is free to move transversely in a tank, the...
单项选择题When liquid is free to move transversely in a tank, the effect is called（）.
A.Free communication B.Free fensity C.Free surface D.Negative GM
When the truck does not work, the driver should（）engine...
单项选择题When the truck does not work, the driver should（）engines.
A.turn on B.turn off C.shut up D.close
