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柱塞式喷油泵的速度特性表明,当供油拉杆位置不变时,喷油泵每循环供油量( )。

单选题
2021-07-17 23:47
A、转速越高,喷油量越多
B、转速越高,喷油量越少
C、与转速无关
D、以上都不对
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正确答案
A

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