A.well
B.good
C.excellent
D.respectively
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A.lime
B.frost
C.scale
D.scar
A.scar
B.scale
C.spur
D.bilge
A.continuously
B.regularly
C.constantly
D.period
A.to change the lube oil
B.have the lube oil purified
C.have the lube oil burnt
D.to analyze the lube oil
A.not less than twice
B.greater at least twice than
C.not greater twice than
D.larger three times than
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
An automated diesel engine should normally shut down due to （）
Lube oil cannot be efficiently filtered if its （）.
Diesel engine control can be obtained by the bridge （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
Maximum horsepower of a diesel engine is attained （）.
Combustion knock occurring in a diesel engine can be caused by （）.