问题描述：
[单选]
Which of the following may take place if the clearance of the main bearings are excessive？
A．bearing knocks
B．dropping of pressure of LO
C．noises
D．all 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：Which of the following will take place if the clearance of the main bearings are excessive？
下一篇：Which of the following may lead to the engine NOT to start on air？
- 我要回答: 网友(216.73.216.29)
- 热门题目: 1.维修性包括（）。Ⅰ.易拆卸性 2.为了提高系统的可靠性，除选用 3.在相同条件下，部件并联方式的