题目内容
【C8】
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A．In a university.B．I？ a hospital.C．In a factory.D．In a shopping center.
某旅行社对学生团体旅游提出如下优惠方案：每人享受八二折(即原价的82%)优惠，且如果人数多于5人，则有1人可全部免费，但不得分成多个旅游团。现有一个9名学生的旅游团参加该旅行社组织的旅游团组，则人均费用大约优惠了（）。
Stress is natural part of everyday life and there is no way to 【C4】______ it. In fact, it is not the bad thing it is often 【C5】______ to be. A certain amount of stress is vital to provide 【C6】______ and give purpose to life. It is only 【C7】______ the stress gets out of control that it can lead to 【C8】______ performance and ill health.
The amount of stress arsons can withstand depends very much 【C9】______ the individual. Some people are not afraid of stress, and 【C10】______ characters are obviously prime material for managerial responsibilities. Others lose 【C11】______ at the first signs of unusual difficulties. When 【C12】______ to stress, in whatever form, we react both chemically and 【C13】______ . In fact we make choice between "flight and fight" and in more primitive days the choices made the difference 【C14】______ life and death. The crises we meet today are 【C15】______ to be so extreme, but however little the stress, it 【C16】______ the same response. It is when such a reaction lasts long, through continued 【C17】______ to stress, that health becomes 【C18】______ . Such serious conditions as high blood pressure and heart diseases have 【C19】______ links with stress. Since we cannot 【C20】______ stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.
【C1】
有A、BG两个电脑显示器，已知旧显示器A的宽与高的比例是4：3，新显示器B的宽与高的比例是16：9，如果两个显示器的面积相同，问B的宽与A的宽度之比是：
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