工业革命后，民主政治继续发展，有的国家通过改革而不是革命走上资本主义道路，这些国

数字广外采用的系统模式是（）。

A.C/S

B.B/S

C.C/S与B/S的混合模式

D.A/S

郑西（郑州一西安）高速铁路客运专线已于2010年2月6日建成通车。专线全长505km，承担运行任务的“和谐号”动车组（如图所示），最高车速可达350km／h。G2009次列车下午17：10从郑州发车，19：08到达西安，则这次列车的平均速度约为               km／h。在交通事故中，有很多是因为行驶的车辆不能及时停下来造成的，这是因为__________________ 。

　　分别以小草、山桃、杨柳作为陈述对象重组下面的句子，使句式协调，语序合理。（可增删个别字词）

　　煦暖的阳光最先把山坡上的小草唤醒，多情的春风最后催促着一向慵懒的山桃灿烂成一片云霞，而蒙蒙细雨则已将河边的杨柳点染成团团碧烟翠雾了。

答：_____________________________________________________

A new reading tool was put on the market this week for the two-to five-year-old set. It is sold for at least $389, an expensive purchase for a kid – and that doesn’t even include a $99 annual subscription (订阅) fee for games, e-books, and age-appropriate software.

That might be fine for parents willing and able to pay thousands for private nursery schools, but will the tool actually help kids learn language and reading skills more effectively than traditional books?

Probably not, said Dr. Michael Rich, director of the Center for Media and Child Health at Children’s Hospital Boston. “There is a sensory components (感官因素) to books that isn’t there with e-books,” he explained. “You can smell it, turn the pages, and taste it, as young kids are likely to do.”

That might help little ones become more familiar with the books, helping them learn from them, but far more important is whether a person is actually sitting with them while they’re looking at the pages.

Researchers have shown time and again that kids learn better when they’re having interaction (互动) with real people, rather than electronic voices reading to them from a computer or speaking to them from the TV.

A Georgetown University study found that kids who learned to put on gloves from watching a video took six times as long to learn the process as those who watched it shown by an adult standing in front of them.

“I’m a big believer in teaching kids to live in the digital society and use what the rest of the family uses, but they do need to be supervised,” said Dr. Gwenn O’Keeffe, a Boston-based children’s doctor and spokesperson for the American Academy of Pediatrics. “We don’t recommend that young kids use any type of technology for very long since they have the attention span (注意力持续时间) of a butterfly.”

小题1:According to the text, the new tool        .

A．is mainly used to entertain kids

B．can be accepted by most families

C．is designed for preschool kids

D．can download games for free小题2:Why is Dr. Michael Rich against the new tool?

A．Because it doesn’t really involve many of the senses.

B．Because it does great harm to kids’ eyesight.

C．Because kids can’t communicate with it.

D．Because traditional books are cheaper.小题3:The study mentioned in Paragraph 6 aims to        .

A．show the disadvantage of kids’ watching videos

B．prove the importance of interaction with people

C．ask parents to teach their kids to learn

D．prove using e-books saves much time小题4:The underlined word “supervised” in the last paragraph can be replaced by “     ”.

A．punished

B．watched

C．encouraged

D．understood小题5:What is the author’s purpose in writing the text?

A．To introduce a new electronic device.

B．To teach kids how to live in a digital world.

C．To show parents how to help kids gain knowledge.

D．To throw new light on kids’ use of electronic tools.

开放性气胸的紧急处理原则（）

A.立即做胸腔穿刺抽气

B.立即做胸腔闭式引流

C.立即行气管内插管辅助呼吸

D.用无菌纱布覆盖包扎伤口

E.立即清创胸壁伤口缝合