In a diesel engine, when refitting piston rings you should ①check the ring gap at the smallest diameter of the cylinder ②remove carbon from the ring grooveA.①B.②C.①②D.neither ① nor ②

题目

In a diesel engine, when refitting piston rings you should ①check the ring gap at the smallest diameter of the cylinder ②remove carbon from the ring groove

A.①

B.②

C.①②

D.neither ① nor ②

相似考题

1.()that happen,what()we do?A、If…shallB、Suppose…shallC、Should…wouldD、Had…should

2.A: Have you seen my camera? I can't find it.B: Just now I have seen it. You_____ have put it in the bag.A. mustB. wouldC. should

3.客户操作系统可以运行在什么权限?()A.Ring0B.Ring1C.Ring2D.Ring3

4.______ he come, what you say to him?A. If, willB. Should, wouldC. When, wouldD. Would, do

参考答案和解析
正确答案：C
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