题目内容
在逆流吸收过程中，操作液气比增大，操作线与平衡线之间的距离（ ）。
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吸收塔内任一横截面上，气液组成Y与X之间的关系称为操作关系，描述该关系的方程即为操作线方程。
完成一定的吸收任务，操作液气比越小，则出塔吸收液的组成越低。
Read the passage to decide whether the following statements are True or False. Write T/F accordingly.( ) 1. By visiting the website of the team you like, everyone can find interest in English.( ) 2. If you are a beginner, you may want to start off with an English-English dictionary.( ) 3. We can make progress by learning from the mistakes we made when learning English.( ) 4. By “English Thinking”, we mean translate in your head what you want to say in your own language.( ) 5. The Internet is a fabulous tool for learning English.
关系模型的三类完整性约束包含（）。
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