施工机械折旧应计入()。
A.材料费
B.施工机械使用费
C.其他直接费
D.现场经费
参考答案:B
You _____ all those clothes! We have a washing machine to do that sort of thing.
A.wouldn’t have washed
B.mustn’t have washed
C.needn’t have washed
D.can not have washed
轨道工维修不得()作业。
A、单人
B、两人
C、三人
D、四人