我国化工专家侯德榜创立了“侯氏制碱法”,促进了世界制碱技术的发展.流程简图如下(已知:母液中有一种铵态氮肥),下列有关说法不正确的是( )
A:反应中先通入氨气的目的是促进二氧化碳的吸收,提高产率
B:“母液”中一定只含有两种溶质
C:反应 II得到的CO2可以循环使用
D:反应 I的方程式为NaCl+NH3+CO2═NaHCO3↓+NH4Cl
根据给要求,改写下列句子。1-6题,每空格限填一词。7题注意句首大写。
下列计算错误的是( )
电视已经走进了千家万户,是我们生活的重要组成部分。每个人都有自己最喜爱的电视节目。下面是五个人的描述,请根据他们的描述从A-F中为他们选择合适的电视节目____ I am 73 years old. I often watch TV in my free time. Of all the programs, I like the news best. Through the TV, I can learn what is happening in our country and in the world. At seven every evening , I always sit in front of the TV.____ I am a grandma. I like Chinese traditional opera. From Monday to Thursday, I usually turn on the TV at half past seven. The programs from CCTV7 are my best.____ I am a basketball fan. I like playing basketball very much. But I am too busy. So I have to watch it on the TV. Every night, I watch the match till midnight.I am crazy about it , especially NBA____ I am a housewife. I do the housework all day, I'd like to watch TV at night. I prefer to see soap operas like ‘palace”, “meteoric garden” and so on.Because they can make me feel relaxed.____ I am the only son in the family. I am in Grade Five. I like cartoons best. I often watch cartoons on the TV after doing the homework. A B C D E F.