delivery
问题描述：
delivery
we aim to post your goods the day after we receive your order.the majority of our parcels are actually delivered to our customers( )
of our receiving their order.
A 3-4 days before B within 3-4 days C 3-4 days since D not 3-4 days on
答
B.根据句意判断,A在接到请求前,B.接到请求后三天内CD.结构不对