Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Life on-line can be a much richer experience when you aren't restricted to just written words and still pictures.Even if you're new to the Net,you've probably heard about multimedia on-line--listening to audio,watching animations and videos,even playing in three-dimensional space.Sound and movement make information come alive. To experience it,you'll need special pieces of software called plug-ins.The term "plug-in" refers to a small,add-on piece of software which extends the capabilities of your web browser,like Netscape Navigator or Microsoft Explorer,turning your computer into a radio or TV. When you arrive at a web page which contains a file requiring a plug-in which you don't have,you will usually receive a message asking if you want to get it by downloading it and installing it into your computer.Most of the time,the installation will be automatic. Occasionally,you'll run into a downloaded file which needs to be decompressed or un-zipped before installation.Once installed,plug-ins run automatically,without you having to do anything. Many multimedia controls still need to be obtained from the developer but are installed automatically. Shockwave is a good example of this.All you need to do is go to the Macromedia site and click on the link to install the ActiveX control.The rest happens automatically.The next time you go to a "Shocked" website,the Shockwave control loads and plays the movie. Most plug-ins and controls can be downloaded for free on the Internet,although not all will work with every system.Some of them,for instance,only work with Windows 95. Options: A a radio or TV connected with a computer B a small,add-on piece of hardware which improves your web browser C a small,add-on piece of software which can turn your computer into a radio or TV D a small,add-on piece of software like Netscape Navigator or Microsoft Explorer Answer: C a small,add-on piece of software which can turn your computer into a radio or TV Question:
A: The correct explanation about "plug-in" is   _  .

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Air pollution is one of the hottest topics at present because poor air quality is an important factor in both the incidence and cause of respiratory  diseases. Zhong Nanshan, a deputy to the NPC and a member of the CAE, said recently when the concentration of PM2.5 rises by 10 micrograms per cubic meter, hospitalization may rise by as much as 3.1 percent. Meanwhile, when the concentration of PM2.5 rises from 25 mgs per cubic meter to 200, the average daily death rate may rise to 11 percent. Zhi Xiuyi, a leading expert in lung cancer treatment and also vice-president of the CATS, said medical authorities used to focus on tobacco control as a primary means of preventing lung cancer. "But in fact, air pollution is no less harmful than smoking and our research team released a report earlier this year showing that the cancer rate in Beijing is closely related to industrialization," he said. The report, conducted by the Beijing Institute of Cancer Research, shows that the number of cancer patients in China has increased markedly during the past ten years. Chaoyang District, the city's main area of industrialization, has the highest incidence of cancer, almost double that of Yanqing, an area on the outskirts of the city. About four out of 1000 Chaoyang residents have some form of the disease, with lung cancer at the top of the list. "The risk of having cancer largely depends on the length of exposure and the concentration of noxious gases ," said Zhi. In response to the doubt whether seven years' exposure to poor air quality will almost result in cancer, Zhi said the time scale was taken from research overseas that suggested the rate of incidence generally peaked in the seventh year of exposure to a heavily polluted environment. Options: A 16000 B 12000 C 8000 D 7500 Answer: B 12000 Question:
A: If there were 3,000,000 people in Chaoyang District, how many would have respiratory diseases?

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: Every fall, like clockwork, Linda Krentz of Beaverton, Oregon, felt her brain go on strike. "I just couldn't get going in the morning," she says. "I'd get depressed and gain 10 pounds every winter and lose them again in the spring." Then she read about seasonal affective disorder, a form of depression that occurs in fall and winter, and she saw the light literally. Every morning now she turns on a specially constructed light box for half an hour and sits in front of it to trick her brain into thinking it's still enjoying those long summer days. It seems to work. Krentz is not alone. Scientists estimate that 10 million Americans suffer from seasonal depression and 25 million more develop milder versions. But there's never been definitive proof that treatment with very bright lights makes a difference. After all, it's hard to do a double-blind test when the subjects can see for themselves whether or not the light is on. That's why nobody has ever separated the real effects of light therapy from placebo  effects. Until now, in three separate studies published last month, researchers report not only that light therapy works better than a placebo but that treatment is usually more effective in the early morning than in the evening. In two of the groups, the placebo problem was resolved by telling patients they were comparing light boxes to a new anti-depressant device that gives off negatively charged ions . The third used the timing of light therapy as the control. Why does light therapy work? No one really knows. "Our research suggests it has something to do with shifting the body's internal clock," says psychiatrist Dr. Lewey. The body is programmed to start the day with sunrise, he explains, and this gets later as the days get shorter. But why such subtle shifts make some people depressed and not others is a mystery. That hasn't stopped thousands of winter depressives from trying to heal themselves. Light boxes for that purpose are available without a doctor's prescription. That bothers psychologist Michael... Options: A An unexpected gain in body weight. B Unexplained impairment of her nervous system. C Weakening of her eyesight with the setting in of winter. D Poor adjustment of her body clock to seasonal changes. Answer: D Poor adjustment of her body clock to seasonal changes. Question:
A: