设备容器进行煤油渗漏试验,至少保持() A.1小时不漏 B.2小时不漏 C.4小时不 发布时间:2018-02-28 02:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 设备容器进行煤油渗漏试验,至少保持()A.1小时不漏B.2小时不漏C.4小时不漏
题型:单项选择题 The two leaders made a show of unity at the press conference, though they had notably messages.A. discontinuous B. discreet C. discordant D. disadvantageous 查看答案