对盛装易燃、易爆、有毒或强挥发性介质的容器,应做()来检查其密封性。A.水压实验 B 发布时间:2019-08-23 01:12 │ 来源:www.tikuol.com 题型:单项选择题 问题: 对盛装易燃、易爆、有毒或强挥发性介质的容器,应做()来检查其密封性。A.水压实验B.气压实验C.气密性实验
题型:单项选择题 The last question in the maths test yesterday was far _____ me.I couldn’t work it out _____my own.A.over , byB.above, by C.from, onD.beyond, on 查看答案