液压传动系统中,密封圈装置类型有()。A.O型 B.Y型 C.L型 D.M型 发布时间:2019-07-04 03:29 │ 来源:www.tikuol.com 题型:多项选择题 问题: 液压传动系统中,密封圈装置类型有()。A.O型B.Y型C.L型D.M型
题型:多项选择题 He hasn't slept at all for three days. _____ he is tired out. [ ]A. There is no pointB. There is no need C. It is no wonderD. It is no way 查看答案