問題詳情
6 題至第 10 題Rates of myopia have increased around the world, particularly in Asia. In China about 90 percent of 17 to19-year-olds 6 nearsighted, up from an estimated 10 percent in the 1950s. Myopia is 7 in the U.S. too, asreported by the National Eye Institute. It was once thought to affect 8 children. But it is now believed to 9 froma lifestyle of not just too much study but of too little time outdoors. Glasses can clear up vision, but 10 tosunlight seems to be the best defense. A 2013 study in Taiwan found that spending school recess outside can preventmyopia’s onset.
【題組】6
(A)is are
(B)
(C)have had
(D)
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)