单项选择题
The quality of the fuel oil and lube oil （）, Im afraid.
A.has much to do with the operation of the engine and its life
B.have much to do with the operation of the engine and its life
C.has much doing with the operation of the engine and its life
D.have much doing with the operation of the engine and its life
点击查看答案&解析
相关考题
-
单项选择题
The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.
A.be affected
B.affect
C.be effected
D.effect -
单项选择题
If you don’t understand the meaning of the technical terms of the diesel engine, you can （） the dictionary of machine technology.
A.look for
B.find out
C.consult
D.read -
单项选择题
The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means （）
A.join with
B.mix
C.be equal to
D.be constant
