A.top
B.middle
C.bottom
D.any of the above
您可能感興趣的試卷
你可能感興趣的試題
A.compressing
B.interposing
C.imposing
D.pounding
A.has to be handled
B.may be handled
C.has being handled
D.will be handling
A.air
B.heat
C.sludge
D.steam
A.for the release of air
B.for the release of water
C.in order to the release of air
D.because the release of air
A.throw
B.web
C.main bearing
D.deflection
最新試題
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Combustion knock occurring in a diesel engine can be caused by （）.
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?（）
To determine if the lube oil filter elements need changing, （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
Diesel engine control can be obtained by the bridge （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
In using reduction gears to obtain efficient propeller speeds, （）.