升温时要将反应釜()。A、与外界相通 B、完全封闭 C、物料阀部分打开 D、充压加氮 发布时间:2019-10-10 15:37 │ 来源:www.tikuol.com 题型:多项选择题 问题: 升温时要将反应釜()。A、与外界相通B、完全封闭C、物料阀部分打开D、充压加氮气
题型:多项选择题 根据所给中文,用单词的正确形式填空。 1. More and more (来客) are coming to visit China. 2. You can't take the (杂志) out of the library. 3. Outdoor (活动) are good for our health.4. He wants to be a (歌唱家) when he grows up. 5. I always feel (不舒服) after I have ice cream. 查看答案