有关黄色肉芽肿性肾盂肾炎的描述，不正确的是（） A.是一种特殊类型的慢性肾盂肾炎 B

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     I'm usually fairly skeptical about any research that concludes that people are either happier or

unhappier or more or less certain of themselves than they were 50 years ago. While any of these

statements might be true, they are practically impossible to prove scientifically. Still, I was struck by

a report which concluded that today's children are significantly more anxious than children in the

1950s. In fact, the analysis showed, normal children aged 9 to 17 exhibit a higher level of anxiety

today than children who were treated for mental illness 50 years ago.

     Why are America's kids so stressed? The report cites two main causes: increasing physical

isolation(隔离) brought on by high divorce rates and less involvement in community, among other

things and a growing perception that the world is a more dangerous place.

      Considering that we_can't_turn_the_clock_back,_adults can still do plenty to help the next

generation.

     At the top of the list is nurturing(培育) a better appreciation of the limits of individualism. No

child is an island. Strengthening social ties helps build communities and protect individuals against

stress.

      To help kids build stronger connections with others, you can pull the plug on TVs and computers.

Your family will thank you later. They will have more time for facetoface relationships, and they will

get more sleep.

     Limit the amount of virtual(虚拟的) violence your children are exposed to. It's not just video

games and movies; children see a lot of murder and crime on the local news.

     Keep your expectations for your children reasonable. Many highly successful people never attended

Harvard or Yale.

     Make exercise part of your daily routine. It will help you cope with your own anxieties and provide

a good model for your kids. Sometimes anxiety is unavoidable. But it doesn't have to ruin your life.

1. According to the analysis, compared with normal children today, children treated as mentally ill 50

    years ago ________.

A. probably suffered less from anxiety

B. were considered less individualistic

C. were less isolated physically

D. were probably less selfcentered

2. What does the author mean by saying "we can't turn the clock back" in the third paragraph?

A. It's impossible to forget the past.

B. The social reality children are facing cannot be forgotten.

C. It's impossible to slow down the pace of change.

D. Lessons learned from the past should not be forgotten.

3. The author thinks that the conclusions of any research about people's state of mind are ________.

A. illogical  

B. confusing

C. surprising  

D. questionable

4. Which of the following statements is TRUE according to the passage?

A. To children, anxiety is completely avoidable.

B. TV and computer play an important role in isolating children from the real world.

C. Exercise does not help to lessen children's anxiety.

D. Sometimes local news about crime and murder also affects children a little.

5. The first and most important thing parents should do to help their children is________.

A. to lower their expectations for them

B. to set a good model for them to follow

C. to get them more involved socially

D. to improve them with a safer environment

衡量一个人心脏工作能力高低的主要标准是（　　）

A．脉搏快慢

B．心输出量多少

C．血压高低

D．心跳快慢

西方教育史上第一本专门论述教育问题的著作是 (　　)

A．《学记》

B．《论演说家的教育》

C．《政治学》

D．《大教学论》

3个月至3岁小儿化脓性脑膜炎常见的致病菌是( )

A．大肠杆菌

B．金黄色葡萄球菌

C．脑膜炎双球菌

D．流感嗜血杆菌

塑胶玩具注塑件节省原材料、降低成本的主要方法之一是设计壁厚时应当严格把关，使得壁厚在满足成型和使用要求的前提下越小越好。