题目内容
某企业正在讨论更新现有的生产线，有两个备选方案：A方案的净现值为400万元，内含报酬为10%；B方案的净现值为 300万元，内含报酬率为15%。据此可以认定A方案较好。 ()
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社会主义农业建设的中心环节是（）
采用多角经营控制风险的唯一前提是所经营的各种商品和利润率存在负相关关系。 ()
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Around the world more and more people are taking part in dangerous sports and activities. Of course, there have always been people who have looked for adventure--those who climbed the highest mountains, explored unknown parts of the world or sailed in small boats across the greatest oceans. Now, however, there are people who look for an immediate pleasure from a dangerous activity which may last only a few minutes or even seconds.
Bungee jumping can be considered a good example of such an activity. You jump from a high place 200 meters above the ground with a rope tied to your ankles. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground. It is said that 2 million people around the world have now tried bungee jumping. Other activities which most people would say are as dangerous as bungee jumping include jumping from tall buildings and diving into the sea from the top of high rocks.
Why do people take part in such activities as these？ Not very long ago, people's lives were often under danger. They had to go out and hunt for food, and life was a continuous battle for survival. But nowadays, according to many people, life in modem societies has become safe and boring. Life offers little excitement. The answer for some of these people is to look for danger in activities such as bungee jumping.
(27)
A．They think them fashionable.B．They want to keep themselves fit.C．They look for pleas
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