Anyway, that evening, ____ I'll tell you more about later, I ended up staying at Rachel's place.[ ]

A. when

B. where

C. what

D. which

以下哪种避孕方法作用时间长，适用于已有一胎，小孩尚小的妇女（）。

A.短效口服避孕药

B.阴茎套

C.宫内节育器

D.输卵管结扎

E.输精管结扎