正确答案: C
take out
题目:After the engine is warned, we should() the turning gear before starting up the engine.
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学习资料的答案和解析:
[单选题]水润滑艉轴承填料函中的填料为()。
浸油脂棉、麻绳或尼龙绳
[单选题]It is very necessary that each cylinder () before the charged air is compressed.
be scavenged