问题
单项选择题
压缩比逐渐变小的主要原因有（）。
Ⅰ.气缸盖垫床太簿
Ⅱ.缸内结炭过多
Ⅲ.活塞、连杆、曲轴装置中轴承磨损
Ⅳ.压缩余隙过大
Ⅴ.连杆大端垫片加厚
Ⅵ.缸盖底或活塞顶烧损过大
A．Ⅲ＋Ⅳ＋Ⅵ
B．Ⅰ＋Ⅱ＋Ⅳ
C．Ⅱ＋Ⅳ＋Ⅴ
D．Ⅲ＋Ⅴ＋Ⅵ
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
压缩比逐渐变小的主要原因有（）。
Ⅰ.气缸盖垫床太簿
Ⅱ.缸内结炭过多
Ⅲ.活塞、连杆、曲轴装置中轴承磨损
Ⅳ.压缩余隙过大
Ⅴ.连杆大端垫片加厚
Ⅵ.缸盖底或活塞顶烧损过大
A．Ⅲ＋Ⅳ＋Ⅵ
B．Ⅰ＋Ⅱ＋Ⅳ
C．Ⅱ＋Ⅳ＋Ⅴ
D．Ⅲ＋Ⅴ＋Ⅵ
参考答案：A
National Day is coming. We Chinese will have a31 vacation. Lin Yan from Beijing heard that Hainan is very nice, so she is 32 a trip to Hainan with her parents for their vacation. She just finished 33 the Internet and got some information about Hainan. Hainan is really a good place to34, because there are many famous places, 35Tianya Haijiao and Wanquan River. There are also beautiful 36 to walk down and seas to swim in. And the weather there is not too 37 and not too cold. Her parents 38 her. They are flying to Hainan and staying there 39 five days. She hopes she will have a great time and forget all her problems. I think Li Yan is going to have a(n) 40 vacation!
|