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單項選擇題

（） water is more expensive than fresh water It has high specific heat and low viscosity.

A.Distilled
B.Distilling
C.Boiling
D.Boiled

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單項選擇題

（） 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

單項選擇題

（） 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

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