如果价格下降10%引起销售量增加5%，那么需求曲线在这一区域内的需求价格弹性为 (

患者女，66岁。与人聊天时突发右侧肢体不能活动，吐词不清，伴有同向偏盲。家人急送至急诊室，病程中患者无明显头痛、呕吐、抽搐或排尿、排粪失禁。既往无明确“高血压、糖尿病”史，否认近期有类似发作史。体格检查：血压153/64mmHg，意识清醒，两侧瞳孔等大，对光反射灵敏；右侧口角歪斜，伸舌右偏，颈无抵抗，心肺正常，右侧肢体肌力2级，病理征阳性。

如果为缺血性脑卒中，治疗可以选择（）

A.溶栓治疗

B.抗凝治疗

C.降纤治疗

D.抗血小板治疗

E.应用神经保护剂

为了预防漏接事故，旅游团抵达的当天，导游人员应与旅行社有关部门联系，弄清班次或车次是否有变更，并及时与机场(车站、码头)联系，核实交通工具抵达的确切时间。

阅读理解。

     From the health point of view we are living in an amazing age We are free from many of the most

dangerous diseases. A large number of once deadly illnesses can now be cured by modern medicine.

It is almost certain that one day medicines will be found for the most stubborn remaining diseases.

The expectation of life has increased greatly. But though the possibility of living a long and happy life

is greater than ever before, every day we witness the unbelievable killing of men, women and children

on the roads. Man vs the motor-car! It is a never-ending battle which man is losing. Thousands of

people the world over are killed or horribly killed each year and we are quietly sitting back and letting

it happen.

     It has been rightly said that when a man is sitting behind a steering wheel (方向盘), his car becomes

the extension of his personality. There is no doubt that the motor-car often brings out a man s very

worst qualities. People who are normally quiet and pleasant may become unrecognizable when they are

behind a steering-wheel. They say, they are ill-mannered and aggressive, willful as two-year-olds and

completely selfish. All their hidden angers and disappointments seem to be brought to the surface by the

act of driving.

     The surprising thing is that society smiles so gently on the motorist and seems to forgive his behavior.

Everything is done for his convenience. Cities are allowed to become almost uninhabitable because of

heavy traffic; towns are made ugly by huge car parks; the countryside is ruined by road networks; and

the deaths become nothing more than a number every year, to be easily forgotten.

     It is high time a world rule was created to reduce this senseless waste of human life. With regard to

driving, the laws of some countries are unbelievably lax (不严整) and even the strictest are not strict

enough. A rule which was universally accepted could only have an obviously beneficial effect on the

accident rate. Here are a few examples of some of the things that might be done. The driving test should

be standardized and made far more difficult than it is; all the drivers should be made to take a test every

three years or so; the age at which young people are allowed to drive any vehicle should be raised to at

least 21; all vehicles should be put through strict tests for safety each year. Even the smallest amount of

alcohol in the blood can damage a person's driving ability. Present drinking and driving laws (where they

exist) should be made much stricter. Speed limits should be required on all roads. Governments should

lay down safety specifications for car factories, as has been done in the USA. All advertising stressing

power and performance should be banned. These measures may not sound good enough. But surely

nothing should be considered as too severe if it results in reducing the number of deaths. After all, the

world is for human beings, not motor-cars.

1. What is the main idea of this passage?

A. Traffic accidents are mainly caused by motorists.

B. Thousands of people the world over are killed each year.

C. The laws of some countries about driving are too lax.

D. Only stricter traffic laws can prevent accidents.

2. What does the author think of society toward motorists?

A. Society laughs at the motorists.

B. Huge car parks are built in the cities and towns.

C. Victims of accidents are nothing.

D. Society forgives their rude driving.

3. What does the author mean by saying "his car becomes the extension of his personality" in paragraph 2?

A. Driving can show his hidden qualities.

B. Driving can show the other part of his personality.

C. Driving can bring out his character.

D. Driving can represent his manners.

4. Which of the followings is NOT mentioned as a way against traffic accidents?

A. Build more highways.

B. Stricter driving tests.

C. Test drivers every three years.

D. Raise age limit and lay down safety specifications.

5. The author's attitude towards the traffic situation is _____.

A. positive

B. unsatisfied

C. appealing

D. unclear

创伤最常见而且最早出现的特征是（）

A.牙齿移位

B.牙齿松动

C.牙合面磨平

D.形成过深的牙合面凹

E.形成过锐的牙尖，过高的边缘嵴

唐代第（）窟的两组双飞天，是敦煌唐代飞天的典型代表。

A.321

B.320

C.217

D.220