()适用于工作温度不高于60oC的易与空气、水气接触的摩擦部位上。
A.钙基润滑油;
B.纳基润滑油;
C.复合铝基润滑油;
D.工业锂基润滑油。
参考答案:A
—I hear Mike refused to tell the truth and was taken away by the police.
---Where did you ____?
A.pick it up
B.put that up
C.make that up
D.take that up
对交通安全造成影响的主要天气包括().
A.暴雨洪水
B.雨、雪
C.雨淞和冰冻
D.冻土
E.雾