四川省南充市高坪区2015
高考英语基础自练（3）及答案
《江苏省苏锡常镇四市2014模拟调研》
单项选择（共15小题；每小题1分，满分15分）
请认真阅读卜面各题，从题中所给的a, b, c, d四个选项中，选出最佳选项，并在
答题纸上将该项涂黑。
21．weibo as well as wechat＿＿as a media platform for people to share their thoughts
instantly without limits of place or time.
a. serves b. is served
