题目内容
(请给出正确答案)
提问人:网友15***739
发布时间:2022-01-06
[主观题]
The ______ system is applied to prevent metal parts of the engine from rubbing agains
t each other.
A emission control
B cooling
C starting
D lubricating
简答题官方参考答案
(由简答题聘请的专业题库老师提供的解答)
查看官方参考答案