液压缸的密封摩擦力过大,修理措施是活塞杆与导向套的配合采用()的配合。
A.H8/f8
B.F8/h8
C.A8/h7
D.H8/d7
参考答案:A
your pets inside as much as you can when the weather is bad.
A.Keep
B.Keeping
C.Kept
D.To keep
社会认知理论的代表人物是()
A.斯金纳
B.班杜拉
C.马斯洛
D.弗洛伊德
E.华生