外伤性血气胸最简便可靠的诊断依据是A．呼吸困难、发绀B．气管移位C．胸部X线检查见有

根据材料，回答下面问题

2002—2006年企业个数增长最多的是( )

A．2003-2004年

B．2004-2005年

C．2005-2006年

D．2002-2003年

前置胎盘的处理，以下哪项错误（）。

A.期待疗法适于妊娠37周以前

B.期待疗法适于 * * 出血量不多者

C.完全性前置胎盘应剖宫产

D.边缘性前置胎盘应 * * 分娩

E.产后均应纠正贫血及预防感染

爆炸过程中所放出的热量称为爆炸热，常用炸药的爆炸热约为( )kj/kg。

A．1000～2500

B．3700～7500

C．8000～12500

D．15000～19500

阅读理解。

     Getting your teen to think beyond his own immediate needs can be more difficult than cracking a nut

with a plastic fork.But don't worry. It's not impossible.There are many ways to encourage your teen to

care about those outside his immediate circle of friends. As he begins to have responsibility towards others,

he will realize he feels even better about himself.

     "Teens are thinking about career, college, and what their future might look like," explains Michelle

Maidenberg, a clinical director of Westchester Group Works, a center for group treatment in New York.

 "This is very challenging and just one of the reasons why they are so focused on their own world." Once

teens participate in community service, however, they begin to look beyond their personal needs. They also

learn firsthand about the challenges others face, and they experience a sense of authority as they realize they

can make a real difference in others' lives.

     Not sure how to convince a teen to get away from the cell phone and into a community project? Teens

buy into community service when the project or program is in an area of their interest.

     "Finding something in an area of interest for them keeps them motivated and inspired," Maidenberg says.

For instance, if he is interested in culinary (烹饪) school, he could volunteer in a soup kitchen or bake for a

project that supports families in need.Volunteer projects in your teen's area of interest will build her

knowledge base as well as help others.

     Parents can do their part by participating in community service themselves. Teens can learn directly from

their parents that personal enjoyment is not, all that matters.

     Let teens know the benefits they will obtain." Give them every reason in the world to volunteer, " 

Maidenberg advises. She says that working on community service projects builds confidence." By working

with others, teens improve managerial, interpersonal and communication skills. Community service helps to

approach maturity when they take a step back to see the needs of other people," she adds. Another reward:

service hours look great on a resume!

1. According to Michelle Maidenberg, it's hard to get teens to think beyond their own immediate needs

partly because _____.

A. they care more about their circle of friends

B. they have no interest in doing anything

C. they have to work hard for college

D. they are facing many challenges

2. The underlined phrase "buy into" in Paragraph 3 probably means ______.

A. agree to join in

B. spend money on

C. get away from

D. are interested in

3. The writer mentions the benefits in the last paragraph in order to ______.

A. make teens feel much better about themselves

B. encourage teens to care about his own needs

C. help parents reason teens into volunteering

D. get parents to do more community service

丁苯橡胶( )

• A．7
• B．8
• C．9
• D．10