Astudyfindsthatyoungsterswhohaveasisterarehappier.Why?T...
問題詳情：Astudyfindsthatyoungsterswhohaveasisterarehappier.Why?Theusualanswer—thatgirlsandwomenaremorelikelythanboysandmentotalkaboutemotions—issomehowunsatisfying,especiallytoaresearcherlikeofmywork...