滤过分数指（） A.肾小球滤过率/肾血浆流量 B.肾血浆流量/肾血流量 C.肾血流量

电缆线路上所使用的电缆附件，均应符合国家或部颁的（）并有合格证件。

A.现引技术标准；

B.质量标准；

C.产品标准；

D.安全标准。

铸铁管道连接材料的石棉水泥拌好后，需要在（）h内用完。

A.0.5

B.1

C.8

D.24

Books are not Nadia Konyk's thing. Her mother brings them home from the library, but Nadia rarely shows interest. Instead, like so many other teenagers, Nadia, 15, is addicted to the Internet. She regularly spends at least six hours a day in front of the computer, spending most of her time reading and commenting on stories written by other users. Her mother, Deborah Konyk, would prefer that Nadia read books for a change.

As teenagers' scores on reading tests have declined, some argue that the hours spent surfing the Internet are the enemy of reading—destroying a precious common culture that exists only through the reading of books. Critics have warned that electronic media would destroy reading.

Others say the Internet has created a new kind of reading. The Web inspires a teenager like Nadia, who might otherwise spend most of her leisure time watching television, to read and write. What is different now, some literacy experts say, is that spending time on the Web engages viewers with text.

Web supporters believe that strong readers on the Web may eventually surpass those who rely on books. Reading five Web sites, experts say, can be more enriching than reading one book. "It takes a long time to read a 400-page book," said Spiro. "In a tenth of the time," he said, the Internet allows a reader to "cover a lot more of the topic from different points of view."

Some literacy experts say that reading itself should be redefined. Interpreting videos or pictures, they say, may be as important a skill as analyzing a novel or a poem. "Kids are using sound and images so they have a world of ideas to put together," said Donna Alvermann, a professor of literacy education at the University of Georgia. "Books aren't out of the picture, but they're only one way of experiencing information in the world today."

Next year, the Organization for Economic Cooperation and Development, which gives reading, math and science tests to 15-year-old students in more than 50 countries, will add an electronic reading component（软件）. The United States says it will not participate because an additional test would overburden schools.

小题1:Why are books not the thing of Nadia Konyk?

A．She does reading mainly through electronic media.

B．Her mother doesn’t provide her with enough books.

C．She has become addicted to playing games on the web.

D．Like many youngsters, she has lost interest in reading.小题2:How many hours does Nadia spend in front of the computer in a week?

A．Exactly forty-two hours

B．Usually fifty hours

C．More than forty hours

D．At most thirty-six hours小题3:Which of the following statements is correct according to the passage?

A．To search for information on the web engages viewers without text.

B．To explain videos is a technique more important than analyzing a novel.

C．Children using sound and images may lose their interest in movies.

D．People reading well online may surpass those who rely on books.小题4:Why did the US refuse to participate in the tests with an added electronic reading component?       It is because ______.

A．the teachers and students considered it useless

B．such a test would give schools more extra work

C．they thought reading was the only way to get information

D．none of them showed interest in such an additional test

下述KerleyB线特点，哪项不对（）

A.周围小叶间隔增厚所致

B.水平走向

C.可见于矽肺

D.是肺静脉压升高最早期表现

E.胸片上，其厚度约为1mm，长度为2～6cm

在诺兰模型中，社会在计算机上投资开始见效的阶段是（）。

A.集成阶段

B.传播阶段

C.数据管理阶段

D.控制阶段