问题
单项选择题
在被分离的混合溶液中加入一种第三组分,使其与混合溶液中的一个或多个组分形成新的共沸混合物,从而将原混合液分离的操作叫()。
A、萃取蒸馏
B、三元蒸馏
C、水蒸汽蒸馏
D、恒沸蒸馏
答案
参考答案:D
在被分离的混合溶液中加入一种第三组分,使其与混合溶液中的一个或多个组分形成新的共沸混合物,从而将原混合液分离的操作叫()。
A、萃取蒸馏
B、三元蒸馏
C、水蒸汽蒸馏
D、恒沸蒸馏
参考答案:D
阅读理解。 | ||||||||||||||||||||||||||||||
My name is Mariko. I come from Tokyo. I can speak a little English. But I can't speak Chinese. I usually get up at 6 o'clock and go to school at 7:30 in the morning. I think art is interesting. I don't like math. I think it is Boring. I want to visit China and Canada. I think they are very interesting. My name is Mario. I am twelve years old. I go to school at 7:50 and I go home at 4:20. I have lunch at school. I usually have fish, potatoes, I think it's boring. I get up at 6:30 and then I run on the playground. My good friend is Sam. He knows Chinese. He likes Chinese food. He wants to join a Chinese club. | ||||||||||||||||||||||||||||||
根据短文内容,完成下列表格。
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