唯一能通过胎盘的免疫球蛋白是
A.IgGB.IgAC.IgMD.IgEE.IgD
参考答案:A
解析:IgG是唯一能通过胎盘的免疫球蛋白。
-- I have learned that your husband’s family has a lot of money.
-- ___________? I have never relied on him.
A.What for
B.What if
C.So what
D.How come
期货交易的付款方式有()。
A.分期支付
B.现在一次付清
C.未来一次付清
D.用现金支付
E.转账支付