题目内容

Thefuelinjectorpumpisoperatedby（）whichdrivestheplungerupanddown.

A. aseparatemotor
B. acam
C. agenerator
D. achain

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Thefuelissuppliedtothepumpthroughportsoropeningsinthe（）orcylinderofthepump.

A. bottle
B. injector
C. piston
D. barrel

Thefueloilsystemforadieselenginecanbeconsideredintwoparts--thefuelsupplyandthe（）systems.

A. fueltreatment
B. fuelcombustion
C. fuelinjection
D. fuelseparating

“快易理财大众版”为有偿人工服务，按（）收取人工服务费。

A. 人民币2元/笔
B. 人民币10元/月
C. 原币种2元/笔
D. 原币种10元/月

Thefuelpipesandductsshouldbeblownwith（）.

A. atmosphere
B. thefreshwater
C. compressedair
D. chemicalcompounds