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![In1999,twelvepercentofpublicelementaryschoolsintheUnite...]( "In1999,twelvepercentofpublicelementaryschoolsintheUnite...")
In1999,twelvepercentofpublicelementaryschoolsintheUnite...
问题详情：In1999,twelvepercentofpublicelementaryschoolsintheUnitedStatesrequiredstudentstowearuniforms.Justthreeyearslater,theamountwasalmostdoublethat.Astudyofsixbig-cityOhiopublicschoolsshowedstudents...
