离子交换?
参考答案:
这个过程是从可渗透离子的吸附剂溶液中,除去某些不需要的带规定电核的离子,通过来自吸附剂的相似电核,对所需要的离子在溶液中进行置换。
离子交换?
参考答案:
这个过程是从可渗透离子的吸附剂溶液中,除去某些不需要的带规定电核的离子,通过来自吸附剂的相似电核,对所需要的离子在溶液中进行置换。
完形填空。 | |||
Why didn't my teacher believe me? I really did all my homework last night, 1 I don't have it now. My teacher knows I am busy these days. There will be a basketball game 2 two days in our school. I am on the basketball team and have to practice it after school. But that isn't 3 I don't have my homework today. Where is my homework? I have to say my 4 ate it. Last night, I went home late and was really 5 from practice. However, I didn't forget 6 my homework. I had dinner and did it at the same time. When I nearly finished it, suddenly I dropped some meat on my paper. I didn't know 7 to do. It was too late. I had no time to do the homework on 8 piece of paper. So I just put my paper on the table and went to bed. My dog Max loved meat very much and it jumped up onto the table and ate my 9 . My teacher said it was an old story. I 10 know many students say it all the time. But this time, it's true! Who can believe me? | |||
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