通过干扰球虫细胞内钠、钾离子的正常浸透而产生杀虫作用的抗球虫药是（） A.地克珠利

阅读理解。

　　When you go to England you may find the traffic there is different from ours.

As a foreigner you must be careful in the streets, because the traffic drives on the

left. You must look to the right and then the left before you cross a street.

　　In the morning and in the evening when people go to or come back from

work, the streets are very busy. Traffic is the most dangerous then. When you go

by bus in England you have to take care, too. Always remember the traffic moves

on the left. You have to take a look first or you will go to the wrong way.

　　In many English cities there are big buses with two floors. You can sit on

the second one. From there you can see the city very well.

1. From the passage, we know _____in England is different from ours.

A. weather                    

B. life

C. traffic                      

D. culture

2. If you want to drive in England, you will drive _____.

A. on the left                  

B. on the right

C. in the middle                

D. as you like

3. Traffic is dangerous _____.

A. in the morning                

B. in the afternoon

C. in the evening                

D. both A and C

4. In England, you can see the city well _____.

A. on the train

B. on the second floor of a bus

C. by bike

D. on the first floor of a bus

5. The best title of the passage is "_____".

A. England                  

B. Traffic Accidents

C. Buses in England          

D. Traffic in England

动物在生态系统中的重要作用是 [ ]

A．促进生态系统的物质循环

B．把水和二氧化碳等无机物合成有机物

C．分解动植物的尸体或残骸，把有机物转变为无机物

D．吸收空气中的二氧化碳

业主在招标前需办理的事项不包括( )。

A．立项批准

B．资金到位

C．征地许可

D．平整场地

星期日和节假日连队外出人员占现有人数比例的，内地驻防部队一般不超过（）。

A、5%

B、10%

C、15%

影响远曲小管和集合管主动重吸收Na⁺的激素是

A．肾上腺素
B．皮质醇
C．甲状腺激素
D．醛固酮
E．ADH