问题描述：
[单选]
The engine will fail to start unless（）．
A．the pressure of the starting air is high enough
B．there is enough air in the air reservoirs
C．the air is supplied into the cylinders in the appropriate sequence
D．all of the above
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：The exhaust gases for a new engine should be（）when the engine operates under full load．
下一篇：“The engine not obtaining the sufficient speed for firing” means that（）．
- 我要回答: 网友(216.73.216.119)
- 热门题目: 1.当气阀阀面烧穿出现边缘孔洞时 2.排气阀阀杆磨损超过标准要求时 3.排气阀阀面磨损严重时，采用（