下列关于影响柴油机压缩比的因素错误的是( )。 I.抽减连杆大端的调节垫片,压缩比变小 II.增加连杆大端的垫片,压缩比变小 III.轴承磨损,活塞装置下沉,压缩比变小 IV.气缸漏气,理论压缩比变小 V.活塞顶烧蚀,压缩比变小 VI.减少缸盖垫片厚度,压缩比变小 A. Ⅱ +Ⅳ+Ⅵ B. Ⅰ+Ⅱ+Ⅳ C. Ⅱ+Ⅴ+Ⅴ D. Ⅰ+Ⅲ+Ⅵ
【单选题】Man: Jeff has lots of good ideas. Do you think he's willing to come to the meeting? Woman: Oh, I think he'd be glad to come. What is difficult is getting him to speak before a large crowd. Question: W...
【简答题】阅读理解。 The nervous-looking young man had waited for a few moments outside the jeweler's before he got enough courage to enter. He was warmly greeted by a young assistant. James felt a rush of blood to ...