测定水泥比表面积时应过0.9mm筛,取筛下试样在105-110℃烘箱内烘干1h,在干 发布时间:2019-03-09 22:54 │ 来源:www.tikuol.com 题型:判断题 问题: 测定水泥比表面积时应过0.9mm筛,取筛下试样在105-110℃烘箱内烘干1h,在干燥器中冷却至室温后进行试验。
题型:判断题 用所给单词的适当形式填空.1. _____ (do) she live on Center Street?2. The food market is _____ (open) for 24 hours.3. It's very far. You can _____ (take) a taxi.4. Our teacher often _____ (arrive) at school early in the morning.5. The boy _____ (clean) his classroom every morning. 查看答案