货物上部超限时,有()。
A、一级超限和二级超限两个级别
B、二级超限和超级超限两个级别
C、一级、二级、超级超限三个级别
D、超级超限一个级别
参考答案:C
— Do you have the time?
— Sorry, I have no watch.
— ____
A.What a shame!
B.Thanks anyway.
C.It doesn’t matter.
D.Why not buy one?
不属于润滑“五定”内容的是()
A、定时
B、定温
C、定质
D、定量