Write a multi-choice question for the following article: Article: Electrical devices could soon use power make by human energy, Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking , British scientist Max Donelan and other scientists in Canada and the United States developed the device. The device connects to a person's knee, As the person walks, the device captures energy each time the person slows down, To do this ,the device helps with the slowing sown movement of the leg, The movements of the walking person push parts of a small machine that produces electricity, Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute, Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes. There are several possible uses for the device ,Developers say it could help people who work in areas without electricity to operate small computers, The deice could also be used in hospitals to operate heart pacemakers ,It could even be used to assist in the movement of robotic arms and legs. The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy, But the researchers hope to make a lighter, less costly version.An improved version should be ready in one year. The developers hope the device will one day help developing countries, Nearly twenty five percent of people around the world live without electric power. A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania,He created a bag carried on a person's back that also produces power from walking, The knee device does not produce as much electricity as the bag ,But the bag requires the walker to carry a load of twenty to thirty kilograms.
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Answer: Question: What would be the best title for the passage?Options:A First device powered by walking will soon be on the marketB Advanced technology brings in a new way to operate heart pacemakersC Device gives new meaning to the idea of power walkingD Human energy will become a main source of electricityAnswer:C

Q: Write a multi-choice question for the following article: Article: A team led by Professor Theoder Berger, from the University of Southern California, can now manipulate brain cells in rats so that memories stored in the hippocampus, a brain area crucial for memory formation, are activated or suppressed . It's said that _ could one day have medical applications. In the study, researcher first trained rats to remember which of two levers they pressed first, then to press the other lever. As the rats performed the task, the scientists carefully monitored the electrical activity in each creature's hippocampus to find the pattern of nerve-cell activity involved in making a solid memory. Using the same glass needles they had used to record the nerve activity, they stimulated nerves in the same pattern and found that the animals' performance in the task got even better. The rats made fewer errors and were able to remember which lever was the"correct"one for a longer period of time. The scientists went a step further and suppressed the rats' memories with a drug called Mk801, which caused them to forget their task. When the animals' brain cells were later stimulated with the"correct"pattern, they remembered again which lever to press. "What's really exciting about this study is that when they played back the'good' patterns--the patterns when the animal got the task right--it did appear to improve memory,"said Dean Buonomano, an associate professor at the University of California. The final goal, Berger said, is to help people with stroke and epilepsy and the like strengthen memories and to help doctors treat them. The technology might even help sufferers of post-traumatic stress disorder. But first, researchers would have to show that they can stimulate or suppress far more complex memories than the ones in the rat experiment. "Here ,it's a simple task,"Buonomano said. In contrast, humans' memories are very rich and specific... "We have very many steps to go before this can be achieved,"he said.
A: Question: What can we infer from the article?Options:A MK801 is a drug that can be used to stimulate nerves.B The study is expected to be used to help stroke and epilepsy patients recover completely.C Using the study to improve humans' memories still face many challenges.D Researchers have studied far more complex memories than the ones in the rat experiment.Answer:C

Write a multi-choice question for the following article: Article: To succeed in business or life we must continually take actions. Putting yourself on the line day after day can be extremely boring, especially when things do not work out as desired. Each time a disappointing event happens, I like to get reminded of these famous failures: Gates has literally changed the work culture of the world in the 20the and the 21st centuries, by simplifying the way the computer is being used. He was the world's richest man for more than one decade. However, in the 1970's before starting out, he was a Harvard University dropout. The most ironic part is that he started a software company by purchasing the software technology from someone for only $50 back then. Lincoln received no more than five years of formal education throughout his lifetime. When he grew up, he joined politics and had 12 major failures before he was elected the 16th President of the United States of America. Newton was the greatest English mathematician of his generation. His work on optics and gravitation made him one of the greatest scientists the world has even known. Many thought that Newton was born a genius, but he wasn't! When he was young, he did very poorly in grade school, so poor that his teachers became helpless in improving his grades. Beethoven is widely regarded as one of history's great composers. His reputation has inspired composers, musicians and audiences who were to come after him. Before the start of his career, Beethoven's music teacher once said of him "as a composer, he is hopeless". And during his career, he lost his hearing yet he managed to produce great music. A deaf man composing music, ironic, isn't it!
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Answer:
Question: What does the author do if something disappoints him?Options:A He will go on without thought even though he may fail.B He will think of some famous failures in his life.C He will start to tell himself some successful stories.D He will refer to some famous persons' failure stories.Answer:D