(单选题)

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

C.serve

D.are served

参考答案：A

参考解析：

考查主谓一致。句意：微博和微信可以作为一个供人们随时随地分享他们的想法的媒体平台。as well as连接两个成分作主语时，谓语动词单复数与前面的词保持一致，这里的Weibo为第三人称单数，所以谓语动词应用单数形式；serve as意为“用作，充当”，为固定搭配，所以主语与谓语动词之间是主动关系，应用主动语态。故选A。

知识点：