You       to like the subject after you       it for some time.

A．will get; have studied

B．will get; will study

C．got; have studied

D．get; will study

胎盘物质交换中最重要的方式之一是（）。

A.单纯扩散

B.主动转运

C.易化弥散

D.细胞吞饮

E.被动转运