罗次鼓风机在试运时当出现轴上的油环不转动,带不上油,或轴承压盖太紧,轴承内无间隙会产生()。
A、密封环磨损
B、强烈振动
C、轴承发热
参考答案:C
It is you, rather than he, that for the accident.
A.is to blame
B.are to blame
C.is blame
D.are blame
信誉是企业在市场经济中赖以生存的依据。()