人参具有的功效是
A．大补元气
B．补脾益肺
C．生津止渴
D．安神益智
E．养阴清热
参考答案：A,B,C,D
根据句意，用括号内所给单词的适当形式填空。
1. Yu Fang's brother is a ________(success) engineer.
2. I'll be able to finish the homework ________(easy) by noon.
3. The little girl came to the city for the first time and got _______(lose).
4. Life seems so _______(fair) to someone sometimes.
5. Education is one of the most important parts of a country's ________(develop).
下列叙述正确的是( )
A．明矾和Cl2常用于自来水的净化和杀菌消毒，两者的反应原理相同
B．工业上制备镁是用电解熔融的MgCl2来完成的
C．131I是质子数为131的一种核素
D．用过量的KSCN溶液除去FeCl2溶液中的少量FeCl3
