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Bad eating habits, increased food availability, increasingly sedentary lifestyle

游客2023-09-15  40
问题 Bad eating habits, increased food availability, increasingly sedentary lifestyle and reduced physical activity are the first four causes of the obesity epidemic. [br] Studies of human’s eating fish with PCBs have found that ______.
选项
答案 pollution can gain people weight
解析 本题涉及到对人们食用含有PCBs污染物的鱼的研究，从而将题目出处定位到Pollution部分。该部分第二段末句提到，通过对于吃过北美大湖区的含有PCBs污染物的鱼的人们的研究，研究者得出了类似的关联：毒素吃的越多，体重上升就越多，因此可以得出答案。
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