问题描述：
[单选]
With（）unit the timing of fuel injection of an engine can be regulated automatically．
A．MBT
B．MEG
C．VSG
D．VIT
参考答案：查看无
答案解析：无
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答案解析：无
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上一篇：With four-stroke engines， it takes four revolutions of the crank shaft to make（）power stroke（s）．
下一篇：With supercharging a larger mass of air is supplied to the cylinder by blowing it in under pressure， which is the best means to（）of the engine．
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