题目内容：

Some children have got mobile phones ___Chritstmas or birthday gifts,and more will still want them.
A.as B.by C.in D with
不能理解为“一些孩子通过圣诞节或者生日礼物得到手机”吗?

优质解答

A
by 是"通过某手段"之意,as是"作为",所以不能选B