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【判断题】
. 撤销党内职务处分,是指撤销受处分党员由党内选举或者组织任命的党内职务。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】_____________(代替) a carburetor,most engines have electronic fuel injection.
A.
Instead of
B.
Instead
C.
Of
【单选题】The most rapid period of fuel combust in a diesel engine cylinder should begin just before the piston reaches top dead center and____.
A.
when fuel injection has been completed
B.
when fuel vaporization has been completed
C.
should efficiently continue through the after burning period in aft properly designed engines
D.
should be completed shortly after passing top dead center
【单选题】Most fuel injection nozzles are opened by _____.
A.
fuel oil pressure
B.
a cam operated follower
C.
a spring-loaded pressure plate
D.
timing gears keyed to the crankshaft
【单选题】_____________ (代替) a carburetor, most engines have electronic fuel injection.
A.
Instead of
B.
tread
C.
speed
【单选题】On most diesel engines, the governor controls the output speed by （）.
A.
controlling the amount of fuel injected into the cylinders
B.
varying the speed of the turbocharger
C.
adjusting the compression ratio
D.
changing the timing of the fuel injection camshaft
【单选题】A change in the degree of fuel atomization in a diesel engine would most greatly affect （）.
A.
air turbulence
B.
fuel penetration
C.
fuel spray angle
D.
fuel injection rate
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