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单选题

    Thinner isn’t always better. A number of studies have (1)_____ that normal-weight people are in fact at higher risk of some diseases compared to those who are overweight. And there are health conditions for which being overweight is actually (2) _____. For example, heavier women are less likely to develop calcium deficiency than thin women. (3)_____ among the elderly, being somewhat overweight is often an (4)_____ of good health.

    Of even greater (5)_____ is the fact that obesity turns out to be very difficult to define. It is often defined (6)_____ body mass index, or BMI. BMI (7)_____ body mass divided by the square of height. An adult with a BMI of 18 to 25 is often considered to be normal weight. Between 25 and 30 is overweight. And over 30 is considered obese. Obesity, (8)_____, can be divided into moderately obese, severely obese, and very severely obese.

    While such numerical standards seem  (9)_____, they are not. Obesity is probably less a matter of weight than body fat. Some people with a high BMI are in fact extremely fit,  (10)_____ others with a low BMI may be in poor  (11)_____. For example, many collegiate and professional football players  (12)_____ as obese, though their percentage body fat is low. Conversely, someone with a small frame may have high body fat but a  (13)_____ BMI.

    Today we have a(n)  (14)_____ to label obesity as a disgrace. The overweight are sometimes  (15)_____ in the media with their faces covered. Stereotypes  (16)_____ with obesity include laziness, lack of will power, and lower prospects for success. Teachers, employers, and health professionals have been shown to harbor biases against the obese.  (17)_____ very young children tend to look down on the overweight, and teasing about body build has long been a problem in schools.

    Negative attitudes toward obesity,  (18)_____ in health concerns, have stimulated a number of anti-obesity  (19) _____. My own hospital system has banned sugary drinks from its facilities. Many employers have instituted weight loss and fitness initiatives. Michelle Obama has launched a high-visibility campaign  (20)_____ childhood obesity, even claiming that it represents our greatest national security threat.

(7)

A
measures
B
determines
C
equals
D
modifies
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答案:

C

解析:

答案精析:题目所在句进一步介绍BMI的计算方法。空格后意为,“体重除以身高的平方”。此处是一个公式,空格处应填入与数学有关的动词,C项表示“等于”,所以正确。

错项排除:measure表示使用工具对某一指标的测量,并非对公式的计算,故排除A项。本句介绍的是BMI的计算方法,BMI概念首次出现,因此并不能直接使用determine或modify这些与已定义概念搭配的词,因此排除B和D两项。

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