单项选择题
In comparing engines of equal horsepower, higher exhaust gas temperatures occur in a/an（）
A.opposed-piston engine B.double-acting engine C.two-stroke/cycle engine D.four-stroke/cycle engine
单项选择题 A disadvantage of a two-stroke/cycle diesel engine is（）
单项选择题 Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of （）
单项选择题 A disadvantage of a four-stroke/cycle diesel engine is （）
