机械密封与填料密封相比,机械密封()
A、密封性能差
B、价格低
C、机械损失小
参考答案:C
—Where shall we go to spend the weekend?
—No where , anywhere you like.
A.in all
B.in particular
C.in general
D.in response
奥尔波特的人格特质理论把人格特质分为()
A.共性特质
B.个性特质
C.理论特质
D.文化特质
E.民族特质