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- 问题详情：Studentswhodateinmiddleschoolhavesignificantlyworsestudyskills.Theyarefourtimesmorelikelytodropoutofschoolandreporttwiceasmuchalcoholandtobaccouseastheirsingleclassmates,accordingtonewresearchfromtheUniversityofGeorgia."Romanticrelationships...
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