找密码 密码是一个六位数．这个六位数在80万与90万之间，并且千位是0，十位是4

阅读下列材料：

1876 年，英国商人修筑了一条从吴淞到上海的铁路，称为淞沪铁路，这是在中国出现的第一条正式投入运营的铁路。通车的那一天，上海万人空巷，大家都赶来看热闹，没有不“诧为奇观”的。

请回答：

（1）火车最早是哪国哪位科学家发明的？

（2）读了上述材料，你有什么感受？

哪一项不是椎动脉型颈椎病主要症状()

A．眩晕性恶心、呕吐

B．耳鸣耳聋

C．手肿胀、心慌、血压不稳

D．突然摔倒

E．颈酸胀痛

阅读理解。

    A recent study, which was published in last week's Journal of the American Medical Association,

offers a picture of how dangerous it is to get a lift from a teenage driver. Indeed, a 16-year-old driver

with three or more passengers has three times the possibility of a serious accident, compared with a

teenager driving alone.

     The authors also found that the death rates for teenage drivers increased greatly after 10 p.m., and

especially after midnight. With passengers in the car, the driver was even more likely to die in a late-night

accident.

     Robert Foss, a scientist at the University of North Carolina Highway Safety Research Center, says

the higher death rates for teenage drivers have less to do with "really stupid behavior" than with just a lack of driving experience. "The basic issue is that adults who are responsible for giving out licenses fail to

recognize how complex and skilled driving is." he says.

     Both he and the author of the study believe that the way to mitigate (使缓解) the problem is to have

states set up so-called graduated licensing systems, in which getting a license is a process with several

stages. A graduated license requires that a teenager first prove himself able to drive in the presence(在场)

of an adult, followed by a period of driving with night of passenger restrictions (限制) before graduating

to full driving rights.

     Graduated licensing systems have reduced teenage driver crashes, according to recent studies.

1.Which of the following situations is most dangerous according to the passage?

A. Adults giving a lift to teenagers on the highway after 10 p.m.

B. A teenager driving after midnight with passengers in the car.

C. Adults driving with three or more teenage passengers late at night.  

D. A teenager getting a lift from a stranger on the highway at midnight.

2. According to Robert Foss, the high death rate of teenage drivers is mainly due to _____.

A. their lack of driving experience

B. their frequent driving at night

C. their wrong way of driving    

D. their driving with passengers

3. According to Paragraph 3, which of the following statements is TRUE?

A. Teenagers should spend more time learning to drive.

B. Driving is a skill too complex for teenagers to learn.

C. Restrictions should be forced on teenagers demanding to take driving licenses.  

D. The licensing department is partly responsible for teenagers' driving accidents.

4. A suggested measure to be taken to reduce teenagers' driving accidents is that _____.

A. the licensing system should be improved

B. they should be forbidden to take on passengers

C. they should not be allowed to drive after 10 pm

D. driving in the presence of an adult should be made a rule

接触职业性有害因素的劳动者是否发生职业性疾患主要取决于（）。

A.接触浓度（强度）和时间

B.接触机会

C.接触方式

D.人体的健康状况

E.每次接触量

用人孔盖封死。