计算(1)8×(2-12)(2)3(3-π)0-20-155+(-1)-2011

题型:解答题

问题:

计算
(1)
8
×(
2
-
1
2
)

(2)3(
3
)0-
20
-
15
5
+(-1)-2011
考点:零指数幂(负指数幂和指数为1)二次根式的加减乘除混合运算,二次根式的化简
题型:解答题

如图所示,重物的质量为m,轻细绳AO和BO的A端、B端是固定的,平衡时AO是水平的,BO与水平面的夹角为θ,AO的拉力F1的大小是______,BO的拉力F2的大小是______.

题型:解答题

阅读理解。

     Maurice Sendak's children's book, Where the Wild Things Are, published in 1963, has become

very successful throughout the years and was made into a movie earlier this year.

     The book's main character is a boy named Max who gets into trouble with his mother and is sent

to bed without any supper. Before long, Max's room magically becomes a forest, and he sails away to

a land where monsters live. Max isn't scared, though, and becomes king of the wild things, but after a

while, he begins feeling homesick. Max sails back home and his supper is still hot when he arrives in

his bedroom.

     Many teachers and professors like this story and use it to help children develop creativity and

imagination. Melina Davis, an education professor, said she likes how the book contains a couple

of pages that have only pictures on them. "This allows children to shape the story themselves," she

said.

     The book contains a few of larger words that some parents worry may confuse children, but

experts say those words help improve children's reading skills and challenge them.

     Davis said the book is well written which helps kids get involved in the story. "The book talks

about what all children go through, like 'I was naughty but my mommy still loves me'," Davis said.

     The book also encourages children to face their fears. "I think it's really good to show that Max

makes friends with the monsters," Davis said. "Kids can find out monsters aren't always the thing

under the bed that's going to scare them. I think this is good because it shows that the children can

go to scary places but still have a positive experience."

     Since the book has been successful throughout the years, a movie was recently made and many

people are excited to see it. Davis said she thinks the movie will be wonderful but it might be a little

scary for younger children. "You don't want bad dreams over a book that's extremely wonderful,"

Davis said.

1. Teachers and professors like the book because it helps children ____________.

A. learn to draw their own pictures            

B. understand their own fear

C. develop more quickly                    

D. become more imaginative

2. What is the intention of using the larger words in the book?

A. To add to the difficulty while children are reading.    

B. To help challenge the children's reading skills.

C. To cause the children some confusion.              

D. To help children get involved in the story.

3. Which of the following is TRUE about the book?

A. The character Max is brave enough in the story.        

B. Max was sent to the forest as punishment.

C. It is suitable for people of all ages.            

D. It is the most popular children's book ever published.

4. What does Davis think of the movie?

A. She thinks children of all ages will love it.  

B. She encourages children to see it to fight against their fear.

C. She worries that it might be too frightening for some children.

D. She believes it will be a better choice for children than the book.

5.What's the author's purpose in writing the passage?

A. To suggest ways to improve children's reading.        

B. To comment on a famous children's book.

C. To encourage children to read scary stories.        

D. To introduce a movie based on a children's book.

题型:解答题

气血虚弱型闭经的临床表现下列哪项是错误的

A.月经两月未潮
B.头晕面白
C.心悸气短
D.倦怠无力
E.舌淡脉弱

题型:解答题

下列关于word文档打印的叙述中,不正确的是______。

A.可以打印一个文档中的任意一页
B.可以打印光标所在的当前页
C.可以打印选中的内容
D.需要打印第4、第6页时,可以在页码范围栏中输入“4、6”

题型:解答题

危险化学品安全技术

对于现场危险品泄漏物应及时进行( )、收容、稀释、处理。

A.覆盖

B.填埋

C.烧毁

D.回收

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