问题描述：
[单选]
When turning the engine with turning gear， you should keep the indicator cocks（）．
A．attached to the indicators
B．opened
C．closed
D．broke
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：Which cause of the following can lead to the engine not to start on air？
下一篇：When to remove scale from the cooling spaces， acid solution（）in the system can be tested from time to time by putting some on to a piece of lime．
- 我要回答: 网友(3.145.81.212)
- 热门题目: 1.测量发现，活塞在气缸中发生倾 2.测量发现，活塞在近上、下止点 3.活塞运动部件失中不仅加剧磨损