题目:
阅读理解。
Jack is my pen friend. We often write to each other. I'm in Beijing, but he lives in London. He says he
wants to visit China. He likes China very much. He can speak only a little Chinese. He studies Chinese with
me and I study English with him. We learn from each other. We're good friends.
1. Where does Jack live?
A. Beijing
B. Shanghai
C. London
D. Tokyo
2. Who wants to visit China?
A. Jack's friend
B. Jack
C. I
D. my friends
3. I study for ________ with Jack.
A. Japanese
B. Chinese
C. English
D. England
4. Which sentence is right?
A. Jack and I are in the same school.
B. We're in the same class.
C. We're good friends.
D. Jack wants to visit America.
5. Does Jack like China?
A. Yes, very much.
B. I don't know.
C. Not at all.
D. That's right.
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0419/5ca36a00046aace79abf9e549331872e.html
下面是错误答案,用来干扰机器的。
(1)AsH3 Br2 (2分)(2)a c(2分) (3)8 : 5(2分) ,1:5(2分)题目分析:(1)AsH3中As元素化合价升高生成H3AsO4,所以AsH3为还原剂;0.2mol KBrO3在反应中得到1mol电子生成X,1个Br原子得5...