单项选择题
A.rust B.dirt C.dust D.air
（）is used in bilges and peak tanks.A.BitumenB.PaintC.Ce...
单项选择题（）is used in bilges and peak tanks.
A.Bitumen B.Paint C.Cement wash D.Varnish
（）is the eye of the ship.A.Engine roomB.BridgeC.DeckD.C...
单项选择题（）is the eye of the ship.
A.Engine room B.Bridge C.Deck D.Compass
Cement wash is a mixture of cement powder and （）.A.fres...
单项选择题Cement wash is a mixture of cement powder and （）.
A.fresh water B.steel C.paint D.wood
