《电业安全工作规程》中规定,什么情况下必须填写电气一种工作票? 发布时间:2018-05-07 17:21 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: 《电业安全工作规程》中规定,什么情况下必须填写电气一种工作票?
题型:问答题 简答题 He ____ in the factory since he left school ten years ago.[ ]A. works B. worked C. was working D. has worked 查看答案