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  3. It is estimated that there are ______ people suffering from obesity in the world. What is the correlation between body weight a

It is estimated that there are ______ people suffering from obesity in the world. What is the correlation between body weight a

admin2009-06-15  35
问题 It is estimated that there are ______ people suffering from obesity in the world.
What is the correlation between body weight and heart disease and blood pressure?
选项 A、Ten percent less body weight means ten percent less risk of heart disease and high blood pressure.
B、Thirteen percent more body weight means ten percent more risk of heart disease and high blood pressure.
C、The more body weight one gains, the more risk of heart disease and high blood pressure he has.
D、The less body weight one gains, the more risk of heart disease and the less risk of high blood pressure he has.
答案C
解析 借助题干中出现的heart disease和blood pressure作为答案线索，这样找到答案相关句： Ten per cent more weight means thirteen per cent more risk of heart disease．Reducing one’s weight by tenper cent leads to thirteen per cent lower blood pressure．因此可见体重和心脏病的关系是10/13：而体重和高血压的关系也是10/13，因此判断A和B都不正确。只有C(体重增加心脏病和高血压的风险也增加)与原文内容一致。
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