![IfyouwalkinthestreetsofChinatoday,you’llquicklynoticeth...]( "IfyouwalkinthestreetsofChinatoday,you’llquicklynoticeth...")
- 問題詳情：IfyouwalkinthestreetsofChinatoday,you’llquicklynoticethatmostyoungpeoplewearglasses.InShanghai,forinstance,86%ofhighschoolstudentssufferfrommyopia,ornear-sightedness.Anewstudyoffersoneclue:near-sightednessisnearlytwiceascommoninonepartofamid...
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