2. 外语
  3. Bad eating habits, increased food availability, increasingly sedentary lifestyle and reduced physical activity are the first fou

Bad eating habits, increased food availability, increasingly sedentary lifestyle and reduced physical activity are the first fou

admin2009-08-19  94
问题 Bad eating habits, increased food availability, increasingly sedentary lifestyle and reduced physical activity are the first four causes of the obesity epidemic.
Mothers’ getting older and  ______ could also account for the obesity epidemic.
选项
答案more single children/firstborns
解析 本题涉及到母亲的年龄与肥胖流行的关系，从而将题目出处定位到Mature Mums部分。该部分第三段末句提到，母亲年龄变大和独生子女的增多可能也导致了肥胖流行，因此可以获知答案是独生子女的增多。
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大学英语六级

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