题目内容

Inline 4 - cylinder engines are often found in almost all()

A. intermediate cars
B. compact cars
C. full - size cars
D. heavy - duty trucks

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In the( ), air goes into the cylinder during the intake stroke .

A. gasoline engine
B. diesel engine
C. reciprocating engine
D. intemal combustion engine

( ) has two rows of cylinders at 1 8 0 degree angle to each other .

A. Inline engine
B. V - type engine
C ) Boxer engine
D. Rotary engine

用戴维南定律分析电路时,将实际二端网络电路等效成 ()

A. 一个电压源与一个电阻的并联;
B. 一个电流源与一个电阻的并联;
C. 一个电流源与一个电阻的串联;
D. 一个电压源与一个电阻的串联。

电路分析中,支路上的电流的参考方向( )

A. 与实际电流方向是一致的;
B. 是可以任意选择的;
C. 与电压方向一致;
D. 与实际电流方向相反。

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