FacilityLevel5指（）A.USENET B.SYSLOG C.FTPDA

经测定，一瓶气体中含有碳、氢两种元素，这瓶气体不可能是　[ ]

A．一种化合物

B．一种单质和一种化合物的混合物　

C．两种化合物

D．两种单质

《伤寒论》的学术成就有以下哪几个方面（）

A.总结了前人的成就，形成了我国第一部理法方药具备的医学典籍

B.继承了前人在针灸方面的研究成果，极大地推动了针灸学术的发展

C.创立了六经辨证的理论体系，为后世临床医学的发展奠定了基础

D.系统揭示了外感热病的诊治规律，并为后世温病学说的形成与发展创造了条件

E.制定了若干基本治则，保存了许多功效卓著的方剂，并为中药制剂学的发展奠定了基础

We know the famous ones—the Thomas Edisons and the Alexander Graham Bells —but what about the less famous inventors? What about the people who invented the traffic light and the windshield wiper(雨刮器)？Shouldn’t we know who they are?

Joan Mclean think so. In fact, Mclean, a professor of physics at Mountain University in Range, feels so strongly about this matter that she’s developed a course on the topic. In addition to learning “who” invented “what”, however, Mclean also likes her students to learn the answers to the “why” and ”how” questions. According to Mclean,” When students learn the answers to these questions, they are better prepared to recognize opportunities for inventing and more motivated to give inventing a try.”

So, just what is the story behind the windshield wiper? Well, Mary Anderson came up with the idea in 1902 after a visit to New York City. The day was cold and stormy, but Anderson still wanted to see the sights, so she jumped aboard a streetcar. Noticing that the driver was struggling to see through the snow covering the windshield, she found herself wondering why there couldn’t be a built-in device for cleaning the window. Still wondering about this when she returned home to Birmingham, Alabama, Anderson started drafting out solutions. One of her ideas, a lever(操作杆)on the inside of a vehicle that would control an arm on the outside, became the first windshield wiper.    

Today we benefit from countless inventions and innovations，It’s hard to imagine driving without Garrett A. Morgan’s traffic light. It’s equally impossible to picture a world without Katherine J. Blodgett’s innovation that makes glass invisible, Can you picture life without clear windows and eyeglasses?

小题1:By mentioning “traffic light” and “windshield wiper”, the author indicates that countless inventions are      .

A．beneficial, because their inventors are famous

B．beneficial, though their inventors are less famous

C．not useful, because their inventors are less famous

D．not useful, though their inventors are famous小题2:Professor Joan McLean’s course aims to_____.

A．add colour and variety to students’ campus life

B．inform students of the windshield wiper’s invention

C．carry out the requirements by Mountain University

D．prepare students to try their own invention小题3:Tommy Lee’s invention of the unbreakable umbrella was _________.

A．not eventually accepted by the umbrella producer

B．inspired by the story behind the windshield wiper

C．due to his dream of being caught in a rainstorm

D．not related to Professor Joan McLean’s lectures小题4:Which 0f the following can best serve as the title of this passage?

A  How to Help Students to Sell Their Inventions to Producers?

B  How to Design a Built-in Device for Cleaning the Window?

C  Shouldn’t We Know Who Invented the Windshield Wiper?

D  Shouldn’t We Develop Invention Courses in Universities?  

（8分）资料1：精制碘盐的成分为NaCl和KIO₃，其中碘的含量为20～40mg·kg^-1。

资料2：日本地震导致福岛两座核电站反应堆发生故障，铯和碘的放射性同位素大量外泄。

资料3：专家认为，每天服用1片碘片（含碘量100mg）可有效减小人体甲状腺对放射性碘的吸收。

请认真阅读以上资料，并回答下列问题：

⑴铯在周期表中的位置是            。

⑵下列物质中与KIO₃含有化学键类型相同的是       （填序号）。

①HIO₃    ②碘酸钠    ③KOH    ④I₂O₅   ⑤NaCl

⑶向碘盐的溶液中加入白醋和KI,再滴入淀粉溶液，溶液呈蓝色，则发生反应的离子方程式为                                                              。

⑷若用精制碘盐来预防放射性碘对人体的伤害，是否可行？        （填“行”、“不行”），原因是                       。

伤者无心跳无呼吸，同时有开放性创伤，首先针对伤口进行清洗包扎。