题目

请阅读下面短文，并按要求用英语写一篇150词左右的文章。On the subway in Beijing, most people stare at their smartphones. Some play video games or watch TV dramas, while some choose to read.Online novels are popular among these readers. In fact, more people are becoming registered users on online literature websites or smartphone applications. The total number of online literature website users had increased to over 500 million by the end of November 2018, according to a report from China Internet Network Information Center. This shows half of all netizens are online lite我国化工专家侯德榜的“侯氏制碱法”为世界制碱工业作出了突出的贡献。他以食盐、水、氨气、二氧化碳为原料，先制得碳酸氢钠和氯化铵，进而生产出纯碱。表格中是几种物质在不同温度时的溶解度：(1)从表中数据可以看出，温度对_____的溶解度影响不大。(2)要使氯化铵饱和溶液中的氯化铵结晶析出，在____(填“较高”或“较低”)温度下进行比较合适。(3)写出“侯氏制碱法”制碳酸氢钠的方程式_____。(4)有人认为侯氏制碱法的优点有四：A 生产过程中部分产品可选为起始原料使用B 副产品是一种可利用的氮肥C 反应不需要加热D副产物不会造成污染环境你认为其中正确的是___。