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

A.Between
B.Among
C.Between
D.Among

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单项选择题

单项选择题

单项选择题

_____ the engines, the diesel engine is ____ used engine on boardA.Between / more commonlyB.Among / the most commonlyC.Between / not more commonlyD.Among / not the most commonly