单项选择题
A.The driven gear B.The drive C.The grease D.The lubricating oil
（） water is more expensive than fresh water It has high...
单项选择题（） water is more expensive than fresh water It has high specific heat and low viscosity.
A.Distilled B.Distilling C.Boiling D.Boiled
（） the engines, the diesel engine is（） used engine on b...
单项选择题（） the engines, the diesel engine is（） used engine on board.
A.Between；more commonly B.Among；the most commonly C.Between；not more commonly D.Among；not the most commonly
（） providing lubricating films, oil used in marine dies...
单项选择题（） providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.
A.Except for B.Beside C.Except D.In addition to
