络合滴定法是利用()作为标准溶液,测定一些能与标准溶液形成络合物的物质。
参考答案:络合剂
用括号内所给词的适当形式填空。
1.I________ ( go) to the library yesterday morning.
2. We had an________ (interest) holiday in America last year.
3. It started to rain when we________ (leave) the house.
4. Hong Kong is a________ ( busy) city than Tianjin.
5. Jim________ ( take) my pen and pencil just now.
6. Miss Wang often did some________ ( shop) in the evening.
7. Lily will do her homework more________ ( care) next time.
8. We spent two weeks________ ( write) the article ( 文章)
以下对苯妥英钠描述不正确的是()
A.为治疗癫痫大发作和部分性发作的首选药
B.化学名为5,5-二苯基-2,4一咪唑烷二酮钠盐
C.本品水溶液呈碱性反应
D.露置于空气中吸收二氧化碳析出白色沉淀
E.性质稳定,并不易水解开环