問題詳情

請依下文回答第 37 題至第 40 題：The nation’s schools may actually do a better job than parents in keeping children fit and trim. A study found that 5-and 6-year-olds gained more weight over the summer than during the school year, casting doubt on the assumptionthat children are more active during summer vacation. The findings, which come as the issue of childhood obesity isgaining prominence in the US, do not reveal 37 is behind the out-of-school weight gain. The researchers guess itis because the summer months 38 the structure of the school year with its activities and daily comings andgoings.Dough Downey, an Ohio State University sociologist who co-authored the study, said that for many youngsters, thelazy days of summer may offer 39 free time to eat snacks and lounge about watching TV or playing videogames. He said the study seems to point to the need for parents to be more involved. It also raises the idea of a longerschool year and more after-school programs to 40 children active. And schools should continue their efforts topromote good health, he said. “Clearly the source of children’s obesity problems lies outside of the school.”
37
(A)it
(B) that 
(C) what  
(D)which

參考答案

答案：C
難度：困難0.315789
統計：A(1),B(7),C(6),D(4),E(0)

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