下列选项与管段的阻力数无关的是( )。 A．管段内流量 B．管段长度 C．管壁

引起尿急的因素中哪项错误（）。

A. * * 炎症

B.尿中含糖量高

C.膀胱异物

D.前列腺肿瘤

E.尿浓缩，酸性高

仔细观察下图，写出从图中获得的信息．

（1）______．（2）______．

阅读理解。

     Earlier this month, the United States Library of Congress named Katherine Paterson the national

ambassador for young people's literature. She is only the second person to hold the position. She

replaces writer Jon Scieszka, who had served since 2008.

     The librarian of Congress, James Billington, said Ms Paterson "represents the finest in literature

for young people". He spoke of the importance of reading in the lives of American young people.

Ms Paterson has written more than thirty books. She is among only five writers to have won two

Newbery Medals. These are among the most important children's book awards in the United States.

     Bridge to Terabithia won a Newbery Medal in 1977. Her book Jacob Have I Loved won

the award in 1981.

     Katherine Paterson's books for children are often quite complex. Bridge to Terabithia includes

adult themes like depression and death. The book has caused debate because of its place on school

library bookshelves. Some parents think it is too adult for young children. Ms Paterson says the idea

for the book came from a real life experience. Her son's best friend died in 1974 when she was struck

by lightning.

     Katherine Paterson is seventyseven. She began writing as a young mother with three children. But

she says her interest in writing came as a surprise. As a child she had thought about becoming a Christian

religious worker in foreign countries like her parents were.

     Katherine Paterson spoke to a gathering of children when she was named ambassador on January

fifth in Washington. She said, "Read for your life. Read for your life as a member of a family, as a part

of a community, as a citizen of this country and a citizen of the world."

1．The Newbery Medal is designed for ________.

A．writers with best books for children

B．children with best books on adult themes

C．writers with best books for grownups

D．children with best books on nature

2．Which of the following is NOT true about the book Bridge to Terabithia?

A．Its topics include depression and death.

B．It won a Newbery Medal in the 1980s.

C．Some people think it's for adults only.

D．The idea for it came directly from real life.

3．As a child, Katherine ________.

A．had bad relations with her parents

B．showed great interest in writing books

C．hoped to take part in religious activities

D．began writing books with serious themes

4．The national ambassador for young people's literature as a position started in ________.

A．1977  

B．1981  

C．2009  

D．2008

正式将新中国教育为人民大众服务的性质确定下来的是

A．1949年《中国人民政治协商会议共同纲领》

B．1954年《中华人民共和国宪法》

C．1956年中共“八大”文件

D．1995年《关于加强科学技术进步的决定》

新入厂的职工必须接受（）级安全教育。