BillandMelindaGatessharetheir2018AnnualLetter,“The10ToughestQuestionsWeGet.”Inthisyear’sletter,the10thonethatthey’vewritten.
值得注意的是8g2E高市值挂牌公vBrY也存在亏损及x4iP绩下滑的现象mJW2