已知置换反应：A+B→C+ D．（1）若D为氢气，B为稀硫酸，则A的_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

已知置换反应：A+B→C+D．

（1）若D为氢气，B为稀硫酸，则A的选择应满足的条件是 _________ ；

（2）若D为铜，化合物B可能为 _________ ．

答案

（1）金属活动性顺序排在氢之前的金属

（2）硫酸铜（合理即可）

阅读理解

＃117: Some people like to have friends who are different from them. Others like to have friends who are similar to them. What kind of friends do you want for yourself?
Kate Join Date: March, 2010 Location: the United Kingdom	I like to have friends who are like me. Both my best friend Vades and I like traveling. We went to Italy last month and stayed there for a week. Next month we want to go to Paris. However, Vades is more athletic than me.
Ditlady Join Date: April, 2010 Location: Canada	I like to have friends who are like me. It can be very helpful. I’m a little quiet and my good friend Libby is quiet, too. Sometimes I don’t know what to do with my problems and she can tell me what I should do, because she knows about me better than people who are different from me.
Harbinger Join Date: May, 2010	Hi, everyone! I had a cold last week and just got here. In my opinion, it is important to have both kinds of friends. That makes your life more interesting.

6. Where is Kate going next month?
A. To the USA.         B. To the UK.        C. To Italy.            D. To France.
7. What’s Libby like?
A. She’s as beautiful as Ditlady.          B. She’s more outgoing than Ditlady.
C. She’s as quiet as Ditlady.             D. She’s more athletic than Ditlady.
8. What was the matter with Harbinger last week?
A. He had a cold.                       B. He had a headache.
C. He had a fever.                       D. He had a toothache.
9. What kind of friends does Harbinger like to have?
A. Those who are different from him.        B. Those who are the same as him.
C. He doesn’t like to make friends.          D. He likes to have different kinds of friends.
10. What does the underlined word “similar” mean?
A. 一致的          B. 相似的          C. 友好的           D. 简单的

单项选择题

( )，是咨询单位为业主服务的最基本、最广泛的形式之一。

A．业主代表

B．作为业主工程师

C．监理工程师

D．业主参谋