题目

我国制碱工业先驱侯德榜发明了“侯氏制碱法”，其部分工艺如下：其主要反应原理：Ⅰ NaCl+H2O+NH3+CO2=NaHCO3↓+NH4ClⅡ 2NaHCO3Na2CO3+H2O+CO2↑ 等。查阅资料：通常情况下，1L 水能溶解约 1L CO2 或 700L NH3。 某兴趣小组设计了右图装置在实验室模拟该制碱过程，下列说法正确的有①“侯氏制碱法”里的碱指的是氢氧化钠②反应原理Ⅰ是应用了物质溶解度的差异③右图中，B 中导气管的作用是平衡气压，C 装置用于制取 CO2④根据 NH3 和 CO2 溶解度的不同，为生成更完形填空，阅读下面短文, 从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。Do you dream of growing up quickly so you can spend your own money? Earning money isn’t just for people who grow up. Kids can do , too.Earning gives you more than money. It’s also a learning process. working to earn your own money, you will learn to succeed in the world. This includes using money, understanding and other people, using you’ve learned from textbooks and using your time cleverly.Earning is for you. Money gives choices. you want to buy a better birthday gift for your grandpa, the extra money you earn helps.Money gives you independence. When you earn your own money, you don’t have to anyone else to give you anything. 40 yuan that you earn yourself is better than 160 yuan from your parents.However, don’t to learn. Remember , what you are studying now can make you be able to earn money better in later life.1.A. these B. them C. it2.A. By B. With C. In3.A. why B. how C. what4.A. working on B. talking with C. getting on with5.A. what B. why C. which6.A. unnecessary B. good C. dangerous7.A. Though B. Unless C. If8.A. depend on B. look up C. give up9.A. a few B. a lot C. a lot of10.A. rush B. accept C. wait