这伴随着越来xiG4多的资金流入oI4C在低波动或无TGS4动时起作用的5Chj顾式策略(backward-lookingstrategies)。
BillandMelindaGatessharetheir2018AnnualLetter,“The10ToughestQuestionsWeGet.”Inthisyear’sletter,the10thonethatthey’vewritten.