对于高架污染源来说，离污染源越近，污染物的浓度就越高。( 　)

阅读理解。

                                                    Teddy bears

     Children everywhere love toy bears, and people have been making them for

hundreds of years. They also like stories about young bears. Three of the most

famous storybook bears are Rupert Bear, Pooh Bear, and Paddington Bear , and

most children in Britain and America also know the story Goldilocks and the Three

Bears. At the moment so many children-and adults too-like toy bears that there are

shops that sell only toy bears of all kinds.

     Many people call toy bears although this name has been used only since the

beginning of the 20th century. The word "teddy"comes from Theodore and a man

called Theodore Roosevelt was the president of the United States from 1901 to 1909.Because people liked him very much, they called him Teddy, and because he had a

toy bear they called their own bears Teddy, too.

1. The story is about         .       

A. President Theodore "Teddy" Roosevelt

B. famous people who like bears

C. the people who made the first toy bears

D. toy and story-book bears

2. The first toy bears were made         .

A. one hundred years ago

B. a long time ago

C. at the beginning of the 20th century

D. when Roosevelt was president

3. Rupert Bear is the name of a        .

A. bear in a story          

B. toy bear

C. president of the US    

D. shop that sells bears

4. Teddy Roosevelt was a          .   

A. bear in a story

B. children's toy

C. president of the US

D. person who made toy bears

5. Toy bears are often called Teddy bears because          .

A. Teddy is another name for bear

B. President Roosevelt had a toy bear

C. a man called Teddy had a shop that sold bears

D. it is the name of a famous bear in a story

阅读短文,根据短文内容填词,每空一词.

     Many people have toy bears and there are many  6 about toy bears. We   7 call

toy bears "Teddy". This is   8   at the beginning of the 20th   9   a president of the

United States had a toy bear. People     10 the president very much and called him

Teddy.

6.        7.          8.          9.         10.        

开式下击器上接头上部有钻杆母螺纹，下部有（）。

A、偏梯形外螺纹

B、偏梯形内螺纹

C、钻杆母螺纹

D、油管公螺纹

给小婴儿喂药时，应将药品做成（）状

A、粉末

B、半流体

C、小颗粒

D、整粒

以下哪项不是施工图预算对施工单位的作用()。

A.在施工期间安排建设资金计划和使用建设资金的依据

B.确定投标报价的依据

C.进行施工准备的依据

D.控制施工成本的依据