土壤污染可能会造成：①对人体的危害、②对农作物的污染、③酸雨的产生、④洪涝灾害

阅读理解。

Here is the bulletin board of Class 3. Some of the students put their notes on it. Please read them and  answer the following questions.        I want to say thanks to Miss Li,our dear teacher. We couldn't   have a wonderful class without you.                                             Tom Dear Mr Chen,      Please accept my best thanks. I have a lot   of fun  in your P.E. class.                                                         David      Many thanks to John for helping me with  math homework.                                                        Jane    I am thankful to Bill for  lending me books.  I'll  remember to  bring mine next time.                                                          Mario       A thousand thanks to Alex. He always   helps me clean the windows when I'm  busy.                                                        Julia  I'm  thankful to know that I have so many  kind  students. I love you all.                                                     Miss  Li

1. The Chinese meaning of "bulletin board" is _______.

A. 电影广告         B. 寻人启事     C. 公告栏           D. 通缉令

2. According to the notes on the bulletin board, what holiday might be coming?

A. Christmas             B. Halloween     C. Thanksgiving           D. New Year's Day

3. When Julia is busy, what does Alex always help her do?

A. To do math homework.     B. To clean the windows.     C. To have P. E. class together.     D. To take books to school.

4. From the bulletin board, we know that Mr Chen is a _____.

A. repeater               B. P.E. teacher     C. doctor                 D. pilot

5. Why does Bill lend books to Mario?

A. They are classmates.     B. Miss Li wants him to do so.     C. Bill has too many books.     D. Mario forgot to bring his books to school.

      

病态窦房结综合征心电图改变的特点不包括（）

A.持续窦性心动过缓，心率<50次／min

B.应用阿托品后心率明显增快

C.窦性停搏或窦房阻滞

D.可有双结病变

E.常出现慢-快综合征

活塞式压缩机试车准备时，应（）

A.检查注油器及曲轴箱内润滑油，液面应在油镜的1/3以下处

B.检查注油器及曲轴箱内润滑油，液面应在油镜的1/2～1/3处

C.检查注油器及曲轴箱内润滑油，液面应在油镜的2/3～1/2处

D.检查注油器及曲轴箱内润滑油，液面应在油镜的2/3以上

在增加农业和农村投入时，要坚持( )的方针，加快建立以工促农、以城带乡的长效机制。

A．合理稳步推进
B．多予少取放活
C．统分结合
D．多引导多鼓励

1989年6月，波兰在东欧诸国中率先举行多党制议会自由选举，在第三轮选举中，参议院：100个席位中，团结工会和统一工人党( * * 党)获得的席位数分别是( )。

A．99，0

B．88，2

C．90，3

D．95，1