Spokesperson: The major school lunch vendors recently agreed to stop selling high-calorie beverages...

题目信息

Spokesperson: The major school lunch vendors recently agreed to stop selling high-calorie beverages in elementary and middle schools because studies show that children of ages 7 to 8 who substitute one low-calorie beverage for one high-calorie soft drink in their daily diets will, on average, weigh 20 pounds less than they would have by the time they reach high school. Since only low-calorie beverages will be sold in schools, within six to eight years, we can expect to see a reduction in the percentage of overweight high-school children.

The spokesperson assumes which of the following to be true?

A:All low-calorie beverages are better for children than any high-calorie beverages.

B:Elementary and middle school students who used to buy high-calorie soft drinks at school will not bring them to school or drink extra high-calorie beverages at home as a substitute.

C:The companies will resume selling high-calorie beverages to schools in eight years.

D:Those children whose parents are concerned about healthy weight maintenance already limit their children's consumption of soft drinks.

E:Many schools depend on the extra revenue generated by sales of high-calorie drinks.

参考答案及共享解析

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正确答案： B:Elementary and middle school students who used to buy high-calorie soft drinks at school will not bring them to school or drink extra high-calorie beverages at home as a substitute.

Conclusion:

If elementary and middle schools are to sell only low-calorie beverages in schools, within six to eight years, we can expect to see a reduction in the percentage of overweight high-school children.

B. Elementary and middle school students who used to buy high-calorie soft drinks at school will not bring them to school or drink extra high-calorie beverages at home as a substitute. --> Correct, negate the statement and see how the conclusion fall apart