箱座类一件件包括();(),车床尾座等.
参考答案:各种箱体,油泵泵体
—I quarreled with my deskmate yesterday. It’s all my fault.
—Look, she is just over there. —go and say “sorry” to her.
A.You know the drill
B.Believer it or not
C.To be exact
D.It all depends
胶带输送机处理()故障时,不得一人作业。
A.胶带跑偏
B.胶带上有积水
C.胶带卡断
D.胶带打滑