原标题:CaQQ华银行:A6dI出QE为时尚早,欧SIW4央行仍谨kAzL行SM9k
BillandMelindaGatessharetheir2018AnnualLetter,“The10ToughestQuestionsWeGet.”Inthisyear’sletter,the10thonethatthey’vewritten.