压力容器内()时,不得进行任何修理或紧固工作。A.有压力 B.压力等于零 C.压力等 发布时间:2019-07-05 14:51 │ 来源:www.tikuol.com 题型:单项选择题 问题: 压力容器内()时,不得进行任何修理或紧固工作。A.有压力B.压力等于零C.压力等于一个大气压D.压力等于外界压力
题型:单项选择题 ------- Hi, Jane! How nice meeting you here in London! -------Oh, it’s you, Frank. I ____ that you _____ in London.A.didn’t expect, were B.don’t expect, areC.didn’t expect, are D.don’t expect, were 查看答案