表示一组正态分布资料变量值的离散程度，宜选用（） A.算术均数 B.四分位数间距 C

某校从8名教师中选派4名教师同时去4个边远地区支教（每地1人），其中甲和乙不同去，则不同的选派方案共有______种．

阅读理解。

     What happens to a teenage kid when the world he thought he knew suddenly changes? Find out in Little

Brother by American author Cory Doctorow. It is a fascinating book for a new generation of sci-fi readers.

     Marcus Yallow, 17, from San Francisco is much more comfortable in front of a computer than obeying

the rules of society. Smart, fast and wise to the ways of the networked world, he has no trouble outwitting

(骗过) his high school's monitoring system. This way he and his friends get to head off to play a popular

online game in real life.

     While they are playing, a bomb explodes on the Bay Bridge. Marcus stops a military vehicle to get help for

his injured friend, but this simple act throws him into a Department of Homeland Security (DHS) secret prison.

There he is treated as a possible terrorist. He is eventually let go after four days, but his injured friend

disappears.

     When he returns, Marcus discovers that there are many "security measures" in place and that now all

citizens are treated like potential terrorists. While some consider this government action necessary for public

safety, Marcus sees this as a complete destruction of the rights he is supposed to have as a citizen.

     He knows that no one will believe his story, which leaves him with only one thing to do: to take down the

DHS himself. He helps organize a large network called Xnet to spread the truth, anonymously (匿名地).

     The book presents a young man who is irresponsible, but learns about himself, and grows, in the course

of the story. As part of this learning and growing he becomes aware of very serious issues about his society.

1. What kind of article does this passage belong to?

A. A fascinating story.

B. A book review.

C. News report

D. A TV programme

2. The underlined word destruction in the passage means _____.

A. damage

B. reward

C. ruin

D. protection

3. Marcus Yallow was sent to prison because _____.

A. he killed his friend

B. he bombed a military vehicle

C. he did something that a possible terrorist could do

D. his injured friend disappeared

4. From the second paragraph we can infer that _____.

A. Marcus Yallow is much more comfortable obeying the rules of society

B. Marcus Yallow is smart, fast and wise in real life

C. Marcus Yallow always plays online games in real life

D. Marcus Yallow is expert at the network world

某施工单位承担了一矿区工业厂房土建及安装工程，施工过程中发生了以下事件：

事件一：基坑开挖至设计标高附近时，基坑一侧边坡大量土方突然坍落。施工人员发现基底局部存在勘察资料中未注明的软弱土层，并向项目部汇报。项目经理根据施工经验决定对软弱土层进行换填处理，并对基坑侧壁加设支护。由于处理方法正确，支护效果良好。事后，处理方案得到监理工程师和设计单位的认可。经计算，共增加施工成本l2万元，影响工期1Od。

事件二：设备基础施工时，商品混凝土运至现场后，施工人员电话通知监理工程师，监理工程师因外出考察无法到场。施工人员对商品混凝土取样送检后，进行了浇筑作业，并在事后将混凝土检测报告交给监理工程师。检测结果为合格。拆模后，检查表明设备基础局部由于漏振出现了少量空洞。

事件三：设备安装时，施工人员发现由于测量放线误差，设备基础位置偏移了150mm，导致设备无法安装。施工单位不得不拆除设备基础并重新施工，增加成本8万元，影响工期15d。

施工单位针对事件一、事件三按照合同约定的索赔程序提出了索赔要求。

1．纠正施工单位对软弱土层及基坑侧壁的处理程序。2．纠正在设备基础浇筑施工中的不当做法。3．事件二中的基础混凝土缺陷应采用哪种质量处理方法?4．说明施工单位可获得的工程索赔内容及其数量。说明索赔成立的理由。

青年刘某在筹备婚礼的过程中，连续多日劳累，患化脓性扁桃体炎。到医院就医时发现他同时还患有淋病。该患者住院5天，扁桃腺炎痊愈出院，医生嘱其充分休息。按照《母婴保健法》的规定，刘某

A．不能结婚
B．应当暂缓结婚
C．可以结婚，但不能生育
D．可以结婚，治愈后可生育
E．可以按自己的意愿结婚并生育

破坏细菌蛋白质合成的抗生素是

A．抑制细菌叶酸代谢
B．多粘菌素B、多粘菌素E
C．喹诺酮类、利福霉素类、呋喃类
D．青霉素类、头孢菌素类、糖肽类、磷霉素类
E．氨基糖甙类、四环素类、氯霉素类、大环内酯类、林可霉素