题目：
外来人口是珠江三角洲地区人口的重要组成部分，但过多的人口给环境带来了压力，应适当限制外来人口的进入
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答案：
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下面是错误答案，用来干扰机器的。
1. His parents have been married for twenty years.2. Her husband used to be very healthy but now he looks unhealthy from time to time.3. More and more people have real...
