What is the passage mainly about? According to the US National Center for Health Statistics, the increased obesity in the US is

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问题 What is the passage mainly about?
According to the US National Center for Health Statistics, the increased obesity in the US is a result of ______ .

选项 A、the growing number of smokers among young people
B、the rising proportion of minorities in its population
C、the increasing consumption of high-calorie foods
D、the improving living standards of the poor people

答案B

解析 根据题干中的US National Center for Health Statistics可以快速定位至第五个小标题下第一段,原文提及两类人容易患肥胖症:一是年龄在40~79岁的人群;二是非白人女性。B选项正好对应第二类人群,minorities表示“少数民族”,对应原文中的“非白人”。
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