局部麻醉药的脂溶性与其麻醉效能有关，脂溶性愈高效能愈强，其中脂溶性最低的是（） A.

长虹公司在进行了一项市场调查后发现，若该公司投资扩充消费品部门，则公司的β值可从1.2降为0.9，可是由于消费品的边际利润比该公司的另一产品低很多，因此导致盈余和股利的增长从7%降为5%，若K_M＝11%，K_RF＝7.5%，D₀＝2，请判断长虹公司是否应扩充消费品部门。

女孩，8个月。因发热2d后咳嗽8d，近3d明显加重，剧咳后有呕吐，纳差。附近有百日咳患者，患儿出生至今未接受过预防接种。体检：体温37．5℃，神志清，两眼睑浮肿，咽红，心脏无异常，两肺呼吸音粗。诊断为百日咳。

该病儿引起阵发性痉挛性咳嗽的机制为（）

A.肺门肿大淋巴结压迫支气管壁

B.百日咳杆菌产生多种毒素及细胞产物引起机体的过敏反应

C.病变部位炎症、水肿、分泌物增多，引起支气管痉挛

D.病变部位小支气管平滑肌有发作性痉挛，兴奋呼吸中枢

E.细菌释放的内毒素引起粘膜炎症及上皮细胞纤毛运动障碍

以下动物与家蚕的生殖和发育方式明显不同的是（　　）

A．蝗虫

B．青蛙

C．蜜蜂

D．人

某甲国公民经常居住地在甲国，在中国收养了长期居住于北京的中国儿童，并将其带回甲国生活。根据中国关于收养关系法律适用的规定，下列哪一选项是正确的?()

A.收养的条件和手续应同时符合甲国法和中国法

B.收养的条件和手续符合中国法即可

C.收养效力纠纷诉至中国法院的，应适用中国法

D.收养关系解除的纠纷诉至中国法院的，应适用甲国法

阅读理解。

     Tokyo is one of those places that you can love and hate at the same time.

     In Tokyo there are always too many people in the places where I want to be. Of course there are too many cars. The Japanese drive very fast, but in Tokyo they often spend a long time in traffic jams(拥挤).Tokyo is not different from London, Paris and New York in that. It is different when one wants to walk.

     At certain times of the day there are a lot of people on foot in London Oxford Street. But the streets near the Ginze in Tokyo always have a lot of people on foot, and sometimes it is really difficult to walk. People are very polite; there are just too many of them.

     The worst time to be in the street is at 11:30 at night. That is when the night-clubs are closing and everybody wants to go home. There are 35 000 night-clubs in Tokyo, and you do not often see one that is empty.

     During the day, most people travel to and from work by train. Tokyo people buy six million train tickets every day. At most stations, trains arrive every two or three minutes, but at certain hours there do not seem to be enough trains. Although they are usually crowded, Japanese trains are very good. They always leave and arrive on time. On a London train you would see everybody reading a newspaper. In Tokyo trains everybody in a seat seems to be asleep, whether his journey is long or short.

     In Tokyo, I stood outside the station for five minutes. Three fire-engines(消防车) race past on the way to one of the many fires that Tokyo has every day .Tokyo has so many surprises that none of them can really surprise me now.

1 Tokyo is different from London in that_____.

A. it has a larger population

B. night clubs are sometimes empty

C. there are more traffic jams

D. it is more difficult to go somewhere on foot

2. Japanese trains _______.

A. often leave and arrive on timeB. are often crowded

C. are the main means people use to travel to and from work

D. all of the above

3. Where can you find everybody reading a newspaper?

A. At most London train stations

B. On a Tokyo train

C. On a London train

D. At most Tokyo train stations

4. Fires break out _______ in Tokyo according to the writer.

A. very seldom

B. quite frequently

C. not very often

D. only several times a day

5. Which of the following is NOT true about Tokyo?

A. There are more trains than cars

B. Fire-engines are very busy in the city

C. The streets become more crowded at 11:30 at night    

D. Tokyo people are friendly