题目内容 (请给出正确答案)
[主观题]

On the safety issue of mobile phones, the manufacturing companiesA.deny the existence of

On the safety issue of mobile phones, the manufacturing companies

A.deny the existence of mobile phone radiation

B.hold that the amount of radiation is too small to worry abou

C.develop new technology to reduce mobile phone radiation

D.try to prove that mobile phones are not harmful to health

提问人:网友chq1314 发布时间:2022-01-06
参考答案
查看官方参考答案
如搜索结果不匹配,请 联系老师 获取答案
更多“On the safety issue of mobile …”相关的问题
第1题
Which paragraphs are the conclusion of the essay, “Working at McDonald’s”?

A、Paragraph 22.

B、Paragraphs 21-22.

C、Paragraphs 20-22.

D、Paragraphs 19-22.

点击查看答案
第2题
Questions 26 to 30 are based on the following passage:

According to the dictionary definition of “create”, ordinary people are creative every day. To create means “to bring into being, to cause to exist”—something each of us does daily.

We are creative whenever we look at or think about something in a new way. First this involves an awareness of our surroundings. It means using all of our sese to become aware of our world. This may be as simple as being aware of color and texture, as well as taste, when we plan a meal. Above all, it is the ability to notice things that others might miss.

A second part of creativity is an ability to see relationships among things. I f we believe the expression, “There is nothing new under the sun,” the creativ ity is remaking or recombining the old in new ways. For example, we might do this by finding a more effective way to study or a better way to arrange our furniture, or we might make a new combination of camera lenses and filters to cr eate an unusual photograph.

A third part of creativity is the courage and drive to make use of our new ide as, to apply them to achieve some new results. To think up a new concept is one thing; to put the idea to work is another.

These three parts of creativity are involved in all the great works of genius, but they are also involved in many of our day to day activities.

26.Which of the following activities is NOT a creative one according to t he passage?

A.To prepare a meal.

B.To arrange the furniture in a peculiar way.

C.To buy some books from a bookstore.

D.To “write” a letter with the computer.

27.The author holds that ____.

A.creativity is of highly demand

B.creativity is connected with a deep insight to some extent

C.creativity is to create something new and concrete

D.to practise and practise is the only way to cultivate one’s creativity

28.“There is nothing new under the sun.” (Par.3) really implies that ____.

A.we can seldom create new things

B.a new thing is only a tale

C.a new thing can only be created at the basis of original things

D.we can scarcely see really new things in the world

29.What does the author think about the relationship between a new though t and its being put into practice?

A.It’s more difficult to create a new thought than to apply it in practice.

B.To find a new thought will definitely lead to the production of a new thing.

C.One may come up with a new thought, but can not put it into practice.

D.A man with an excellent ability of practice can easily become an inventor.

30.The best title for this passage is ____.

A.How to Cultivate One’s Creativity    B.What is Creativity

C.The Importance of Creativity    D.Creativity—a Not Farway Thing

点击查看答案
第3题
If the demand for traded goods is price-inelastic, the price-specie-flow mechanism will result in _____________________.

A、gold movements between countries that remove trade deficits and surpluses.

B、gold movements between countries that worsen trade deficits and surpluses.

C、negligible movements of gold between countries and hence little or no adjustment of trade deficits and surpluses.

D、a removal of the basis for trade between countries.

点击查看答案
第4题
Continuing MedicaJ Education

There is increasing recognition of the need for health workers to continue their education through-out their careers. Not only do health workers themselves wish to improve their own skills and compe-tence. but the introduction of new techniques and equipment and the changes taking place in health needs and health care policies necessitate continued training. The phrase "health care" is intended to mean not just curative treatment for the sick but the whole range of provision for promoting health and preventing disease.

In virtually every situation some response to this need has been made, so continuing education does take place-even though it may in many instances be ineffective or insufficient. Continuing educa- tion may be initiated by the health workers themselves, by their supervisors, by the managers of the health system, or by other agencies such as professional associations, publishers, and drug compa- nies. The form. of the continuing education may be written materials (journals, books, ad'vertise- ments) , meetings, courses,supervisory visits, or a variety of other methods.

With this diversity of approach it is not surprising that the effectiveness of the continuing educa- tion should be variable. So it is natural that in many countries there is a concern that more continuing education should be provided and that it should be more effective.

The approach suggested that to achieve this aim is to develop a "system" of continuing education. This term needs some explanation as it is capable, of being interpreted in many ways. A system is not the same thing as an organization that provides continuing education. It is much more than that. It is the sum o~ the educational activities, the organizational structure that supports and manages those ac- tivities, the management, and the external agencies involved in the provision of health care. The sys- tem should comprise a nationwide coordinated program in which technology and resources are optimal- ly used.

Health workers themselves are aware of the importance of continued training

A.Right

B.Wrong

C.Not mentioned

点击查看答案
第5题
Which of the following statements is INCORRECT?

A. A language is a means of expressing a particular culture.

B.All languages can well express their respective cultures

C.American Indian languages are as sophisticated as English

D.Some languages are better than other languages

点击查看答案
第6题
These programmes are of immense value to old people

A.natural

B.fatal

C.tiny

D.enormous

点击查看答案
第7题
Which statement is true of the methane emissions of plants in the experiment?

A.The lower the temperature,the higher the amount of methane emissions

B.Living plants release less methane than dried plants at the same temperature

C.When exposed to sunlight, plants stop releasing methane

D.The higher the temperature,the greater the amount of methane emissions

点击查看答案
第8题
第二篇 Smart Window

Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associ-ate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a flip of a switch.

"It took us a long time to figure out what a window really is, " says Claes Granqvist. He's a pro- fessor of solid-state physics at Uppsala University in Sweden. "It's contact with the outside world. You have to have visual contact with the surrounding world to feel well. " So, windows and natural light are important for improving the way people feel when they're stuck indoors.

Yet,windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it's hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Produ- cing blasts of cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world.

Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing,and layering windows to make them more energy efficient. Smart windows go a step further. They use chromogenic technologies which involve changes of color.

Electrochromic windows use electricity to change color. For example,a sheet of glass coated with thin layers of chemical compound such as tungsten oxide works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed,that is,when the amount of voltage is decreased, the window darkens until it's completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark.

One important feature that makes a smart window so smart is that it has a sort of "memory". All it takes is a small jolt of voltage to turn the window from one state to the other. Then,it stays that way. Transitions take anywhere from 10 seconds to a few minutes,depending on the size of the win- dow. The development of smart windows could mean that massive air conditioning systems may no lon- ger need. "In the future, " Granqvist says,"our buildings may look different. "

Which of the following statements does not indicate the importance of windows as described in the first two paragraphs?

A.Windows can change from clear to dark to save energy

B.Windows help to save energy by letting light in

C.Windows help to save energy by providing heat

D.Windows enable people to have contact with the outside world

点击查看答案
第9题
Rumors began to circulateabout his financial problems

A.send

B.hear

C.confirm

D.spread

点击查看答案
账号:
你好,尊敬的用户
复制账号
发送账号至手机
密码将被重置
获取验证码
发送
温馨提示
该问题答案仅针对搜题卡用户开放,请点击购买搜题卡。
马上购买搜题卡
我已购买搜题卡, 登录账号 继续查看答案
重置密码
确认修改
欢迎分享答案

为鼓励登录用户提交答案,简答题每个月将会抽取一批参与作答的用户给予奖励,具体奖励活动请关注官方微信公众号:简答题

简答题官方微信公众号

警告:系统检测到您的账号存在安全风险

为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!

微信搜一搜
简答题
点击打开微信
警告:系统检测到您的账号存在安全风险
抱歉,您的账号因涉嫌违反简答题购买须知被冻结。您可在“简答题”微信公众号中的“官网服务”-“账号解封申请”申请解封,或联系客服
微信搜一搜
简答题
点击打开微信