Write a multi-choice question for the following article: Article: China's economic growth "hard to predict" The worsening global economic situation makes it difficult for China to predict its growth for next year, a senior official said on Friday. "How fast China's economy will grow next year is uncertain," Liu He, deputy director of the Office of the Central Leading Group on Finance and Economy Work, told China Daily. "To a large , the rate will be decided by the external situation," Liu said during a discussion with Swedish Prime Minister Fredrik Reinfeldt and other economists in Beijing. "This year, GDP is estimated to grow at 9.4 or 9.5 percent, down from 10.6 percent last year," he said. "However, the impact of the current financial turbulence on our economy is much less than on the rest of the world." Nicholas Stern, a former UK government advisor, also told China Daily it will take at least one or two years for the world to recover from the recession, which is now spreading from the US and the UK to the rest of the world. "We don't know how long the recession will last, but it is unlikely to be short," he said. Liu said China can use the downturn as an opportunity to restructure its economy, which has relied heavily on government investment, foreign trade and low-cost technology over the past years. "When the economy is experiencing fast growth, companies are unwilling to upgrade their technologies," Liu said. "The slowdown gives such firms the opportunity to enhance their competitive edge through better technologies." (From China Daily 2009-01-11)
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Answer: Question: According to the passage, the reason why Liu said this downturn is an opportunity for China to restructure its economy is that _ .Options:A China's economy will not depend on government investment in the futureB Foreign trade will grow in the futureC The downturn will force China's companies to upgrade their technologiesD Low-cost technologies will not exist in ChinaAnswer:C

Write a multi-choice question for the following article: Article: Below is a selection from a popular science book. If blood is red, why are veins blue? Actually, veins are not blue at all. They are more of a clear, yellowish colour. Although blood looks red when it's outside the body, when it's sitting in a vein near the surface of the skin, it's more of a dark reddish purple colour. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison. Which works harder, your heart or your brain? This question depends on whether you're busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker. But, in the long run, your brain probably tips it, because even when you're sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it. Do old people shrink as they age? Yes and no. Many people do get shorter as they age. But, when they do, it isn't because they're shrinking all over. They simply lose height as their spine becomes shorter and more curved due to disuse and the effects of gravity . Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again?No, because old people don't really shrink!It is not that they are growing backwards--their legs, arms and backbones getting shorter. When they do get shorter, it's because the spine has shortened a little. Or, more often, become more bent and curved. Why does spinning make you dizzy ? Because your brain gets confused between what you're seeing and what you're feeling. The brain senses that you're spinning using special gravity and motion sensing organs in your inner ear, which work together with your eyes to keep your vision and balance stable. But when you suddenly stop spinning , the system goes out...
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Answer: Question: Which of the following statements about our brain is TRUE?Options:A In the long run, our brain probably works harder than our heart.B When our brain senses the spinning, we will feel dizzy.C The brains of the other mammals are as complex as those of humans.D Our feelings and emotions come from the most developed area in our brain.Answer:A

Write a multi-choice question for the following article: Article: Can people change their skin colour without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin colour. The gene comes in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science. Scientists have changed the colour of a dark-striped zebra fish to uniform gold by inserting a version of the pigment gene into a young fish. As with humans, zebra fish skin colour is determined by pigment cells, which contain melanosomes . The number, size and darkness of melanosomes per pigment cell determines skin colour. It appears that, like the golden zebra fish, light-skinned Europeans also have a mutation in the gene for melanosome production. This results in less pigmented skin. However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebra fish genes. Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun, which can cause skin cancer. But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng. Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin colours, said Cheng. The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin colour without damaging it like chemical treatment done on Michael Jackson.
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Answer:
Question: The passage is probably taken from _ .Options:A a novelB a science reportC a story bookD a science fictionAnswer:B