柴油机（）用来保证气缸的密封，尽量使气缸内的气体不漏入曲轴箱。
A.气环
B.油环
C.气缸垫
参考答案：A
---How do you find the match between Spain and Switzerland?
---It's ！ Powerful Spain lost the game by 0∶1.
A．puzzling
B．amazing
C．tiring
D．moving
可申请个人住房公积金贷款的借款人基本条件之一为（）.
A.只要具备还款能力即可
B.按时足额缴存住房公积金
C.借款人准备参加公积金汇储或住房货币补贴
D.已支取住房公积金或住房货币补贴
