标题: 麻烦讲解 [打印本页] 作者: scholar 时间: 2010-10-15 21:27 标题: 麻烦讲解 The number of North American children who are obese-that is, who have more body fat than do 85 percent of North American children their age---is steadily increasing, according to four major studies conducted over the past 15 years. （意思没看懂，求翻译，谢谢）
If the finding reported above is correct, it can be properly concluded that
(A) when four majors studies all produce similar results, those studies must be accurate
(B) North American children have been progressively less physically active over the past 15 years
(C) the number of North American children who are not obese increased over the past 15 years
(D) over the past 15 years, the number of North American children who are underweight has declined
(E) the incidence of obesity in North American children tends to increase as the children grow older 作者: pexi 时间: 2010-10-15 22:05
这是逻辑吧。。。怎么搞到语法来了。。