在后肾的形成过程中，输尿管芽和（）间充质之间存在着相互诱导。

下列叙述正确的是[ ]

A．非金属氧化物一定是酸性氧化物，碱性氧化物一定是金属氧化物

B．由不同原子组成的纯净物一定是化合物

C．氢氧化铁胶体稳定存在的主要原因是胶粒带电，向其中滴加少量稀硫酸，将有沉淀产生，继续滴加，沉淀溶解

D．离子化合物均属于强电解质，都易溶于水

缺乏细胞壁的原核细胞型微生物是（）。

A.衣原体

B.病毒

C.支原体

D.螺旋体

E.真菌

语言应用(12分)

2011年10月13日下午5时30分许，一出惨剧发生在佛山：年仅两岁的女童小悦悦走在巷子里，被一辆面包车两次碾压，几分钟后又被一小柜车碾过。而让人难以理解的是，七分钟内在女童身边经过的十八个路人，竟然对此不闻不问。最后，一位捡垃圾的阿姨陈贤妹把小悦悦抱到路边并找到她的妈妈。2011年10月21日，小悦悦经医院全力抢救无效，在零时32分离世。

此事在社会上引起强烈反响，成都某中学决定针对这一事件开展以下活动：

小题1:班上准备以“拒绝冷漠”为主题召开主题班会，请你写一段开场白（4分）

小题2:面对这样的悲剧，你想对那些漠视者说些什么？（4分）

小题3:请就“小悦悦”事件引发的思考写一句公益广告（4分）

阅读理解

     Nine out of 10 New Zealanders rate their quality of life as good or better, according to a new survey

published on Monday.

     Researchers for the third national Quality of Life survey spoke to 500 people in each of the 12 main

centers and 2,000 people in the rest of the country.

     In the cities, 87 percent of residents said their overall health was good or better and 86 percent of

people said they had enough money to cover living costs.

     Nine out of 10 people said they felt safe in their homes, but people were concerned about vandalism(恶意破坏), car theft and dangerous driving .

     Only 11 percent of people nationwide said they felt safe in their city center at night for reasons

including the perception of dangerous people in the area, media coverage of crime and alcohol and drug

problems in the central city.

     People in Wellington and the North Shore felt safest, while Christchurch had the highest number of

people who felt unsafe.

     Wellingtonians were the most proud of their city, 82 percent, while the least proud were people in

Manuka, 43 percent, and Auckland, 51 percent.

     Wellingtonians thought they had the best quality of life at 94.9 percent, followed by Dunedin at 94.2

percent and Christchurch at 93.1 percent.

     The survey found 59 percent of people in the cities felt people from different cultures made their city a

better place to live.

     The 12 participating councils were North Shore, Waitakere, Auckland, Manukau, Rodney, Hamilton, Tauranga, Wellington, Porirua, Hutt Christchurch and Dunedin.

     The survey was funded by the councils and the Ministry of Social Development.

1. What is the best title of the passage?

A. Research shows New Zealanders are happier than Americans.

B. The third national Quality of Life survey shows its research.

C. New Zealanders have good quality of life in the world.

D. A new survey was published on Monday.

2. Which if the following city is thought to be the least safe?

A. Wellington.

B. the North Shore.

C. Dunedin.

D. Christchurch.

3. The underlined word "coverage" in the fifth paragraph is closest in meaning to ______.

A. report.

B. protection.

C. shelter.

D. consistence.

4. How is the passage organized?

A. with example.

B. with figures.

C. with facts.

D. with ideas.

5. Which of the following would be NOT true according to the passage?

A. New Zealanders are satisfied with their life.

B. The survey was supported by the councils in money.

C. Less than half of the people lie their good life in different cultures.

D. The Wellingtonians were the most proud of their city.

初始氮含量对钢液脱氮有何影响？