37. According to estimates, the number of people who speak two

　　36 Research indicates that brain training is likely to boost one& 39;s ability at specific tasks, but not on

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　　Modern U S cities were designed to make exercise unnecessary Cars and elevators once symbolized urban areas

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　　Directions: For this part, you are allowed 30 minutes to write an essay that begins with the sentence With

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　　随着经济与社会的发展，中国人口结构发生了显著变化，逐渐步入老龄化社会。中国老年人口将持续增加，人口老龄化趋势将更加明显。为了应

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　　55 What conclusion did Margaret Mead reach after studying dozens of different cultures?　　A) It is characteri

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