A.pressure
B.temperature
C.viscosity
D.density
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A.slow
B.quick
C.arranged
D.high
A.not good
B.good
C.better
D.the best
A.The lower；the worse
B.The higher；the better
C.The lower；the better
D.The highest；the worst
A.slope
B.base
C.top
D.bottom
A.BHP
B.MCR
C.IHP
D.MEP
最新試題
Cold weather starting of a diesel engine may be made easier by（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
（） is not installed on the main switchboar.