世界绒山羊最多，品质最好的国家是（）。A.中国 B.日本 C.澳大利亚 D.美国

大气在铅直方向上分层的依据是什么？大气在铅直方向上可分为哪几层？其中最低的一层有什么特点？

阅读理解。

     No one likes germs. You wash your hands often and avoid sick people. But some of the germiest places

are in your own home where you can't avoid them!

     Over 77, 500 bacteria per square centimeter can live in your kitchen sink drain. More bacteria live in and

around the sink itself. To get rid of them, clean the entire sink area with a disinfectant.

     Those wet clothes from your washer are not all that clean, especially if they include underwear. Use hot

water and bleach to wash underwear as it contains E.coli (大肠秆菌). Put wet laundry in the dryer quickly

so the bacteria do not multiply.

     The germs you wash off your body stay in the tub-about 15.500 bacteria per square centimeter! Use a

disinfectant to clean your tub weekly. And dry the tub with a clean towel so more germs won't grow on the

wet surface.

     You'll find plenty of germs outside your home too.

     Lots of germs live on the buttons of your local ATM. According to www.health.corn, Chinese researchers

tested 38 ATMs in downtown Taipei. They found that each button hosted an average of 1,200 germs. Use a

hand sanitizer after using the ATM and after handling paper money too.

     The bottoms of women's purses house tens of thousands if not millions of bacteria. University of Arizona

researchers discovered all kinds of different bacteria on purse bottoms. These included E.coli as well as

bacteria that cause eye and skin infections. Women should wipe their purses every few days with a mild soap

solution.

     All kinds of germs live on shopping cart shopping cart handles. Lots of people touch the handles each day-

and who knows where their hands have been! Carry disinfectant wipes and use them on the handles. That will

kill nearly all germs.

1. How many germy places are mentioned in this passage?

A. two

B. four

C. six

D. eight

2. What does the underlined word disinfectant mean in the second paragraph?

A. a kind of germ

B. a tablecloth

C. a kind of cleaning tool

D. a kind of chemical liquid which can kill germs

3. Which of the following statement is NOT true according to the passage?

A. Some of the germiest places are outside your home.

B. Use a disinfectant to clean your bathtub weekly.

C. Use a hand sanitizer after using an ATM or handling paper money.

D. Thousands of not millions of bacteria live on the bottoms of women's purses.

假如你是李华，是一位高中生。随着科技的发展，iPad已经成为中学生的新宠。用iPad即可以听音乐，阅读电子文书，又可以玩电子游戏。请你用英语给某英语报社写一封信，谈谈中学生使用iPad的情况。信的内容必须包括以下几点：

1.使用对学习的好处；

2.对课堂纪律和学习可能产生的负面影响；

3.提出自己的建议

注意：开头已经给出，不计入总数。词数120字左右

Dear editor,

I’m a senior high school student, named Li Hua.

_____________________________________________________________________

_____________________________________________________________________

Yours sincerely,

Li Hua

下列俗语中，（）正确反映了“义利兼顾”对人们通过正当途径和合法手段来追求自己的物质利益的要求。

A.“以礼待人，以义应事”

B.“君子爱财取之有道”

C.“见利思义，义然后取”

D.“利者义也，义者利也”

E.“见利忘义，忘恩负义”

要改变并励直流电动机的转向，应该优先选择（）

A.调换电枢绕组接线

B.调换励磁绕组接线

C.改变接在电源的接线