杨冉是一起抢劫案的被害人，在该案的侦查阶段，杨冉申请某侦查人员回避，但被驳回，对此，

已知CuSO₄溶液分别与Na₂CO₃、Na₂S溶液的反应情况如下：

据此判断，下列几种物质K_sp大小的比较中正确的是

A．CuS <Cu(OH)₂<CuCO₃          B．Cu(OH)₂<CuS< CuCO₃

C．CuCO₃<Cu(OH)₂<CuS           D．CuCO₃< CuS < Cu(OH)₂

弯制钢丝卡臂进入基牙倒凹的深度为（）

A.<0.25mm

B.0.25～0.5mm

C.0.5～0.75mm

D.0.75～1.0mm

E.>1.0mm

阅读理解。

     This is an open letter to the three people who stole my handbag from the department store where I am

employed as a shop assistant.

     When you took my bag, I don't know what you thought you were going to get. With my wages, there's

not much left on a Tuesday. I hope the 5 was useful to you. I have informed the social security office so

you won't be able to cash the child benefit next week. I hope that won't leave you too short, but if you really

need a couple of pounds, I suppose you could always cash one of the two checks left in my check book.

Of course, I phoned the bank right away and the check-cashing card is no longer valid, so it won't be much

use to you.

     Actually I don't mind about the money too much. We single parents who work to support our families

understand only too well what it means to be short of cash. However, I don't suppose it went very far among

the three of you. Sorry about that!

     I wish you had left the bag behind and just taken the wallet and check book. There were all kinds of papers

in it, and notes and things that I really need. I really think that was very inconsiderate of you. I mean, how

would you like something like that to happen to you?

     Well, perhaps the bag will turn up. It wasn't even an expensive one, just a plain, old brown leather shoulder

bag. You probably dumped it in the nearest rubbish bin or threw it into the bushes. We've looked around, of

course, but no one saw which way you went after you left the shop.

     I'm not really angry with you. I know how the pressures of modern living can affect us, but I am sad at

the loss of my personal things. I feel violated and helpless. The police were very icy, and they just shrugged

(耸) their shoulders."It happens all the time," they told me. Some small comfort, I suppose. But I've lost just

a little more faith in human nature. And as my young son said when I told him what had happened, "Why?

Mummy, why us?" I couldn't answer that question. I wonder if you can.

1. In writing Paragraph 2, the writer wants to _____.

A. describe the contents of the bag in detail

B. give some suggestions to the three thieves

C. tell the thieves hardly any money was available

D. state the fact that she was careless with the money

2. Which of the following is the most valuable to the writer?

A. The cash in her bag.

B. The papers and notes in the bag.

C. The handbag itself.

D. The check books in the bag.

3. What can we conclude about the police?

A. They have doubts about human nature.

B. They show sympathy for the woman.

C. They think the case quite common.

D. They are unable to find the thieves.

4. Why does the author write the letter?

A. To give the thieves a serious warning.

B. To complain about the fall of morality.

C. To call people's attention to their belongings.

D. To express her affection for her valuable bag.

已知下列热化学方程式：Zn（s）+1/2O₂（g）＝ZnO（s）；△H＝－351.1kJ·mol^－1

Hg（l）+1/2O₂（g）＝HgO（s）；△H＝－90.7 kJ·mol^－1，由此可知反应：

Zn（s）+HgO（s）＝ZnO（s）+ Hg(l)的△H为。

A．△H＝－1141.8 kJ·mol^－1

B．△H＝+260.4kJ·mol^－1

C．△H＝+441.8 kJ·mol^－1

D．△H＝－260.4 kJ·mol^－1

我国新型工程建设管理体制加强了政府的宏观管理，符合政府职能由微观经济管理转变到( )宏观管理上来的要求。

A．计划、组织、控制、协调

B．规划、协调、监督、服务

C．规划、决策、监督、检查

D．守法、诚信、公正、科学