The Internet is the biggest information resource which millions of pages of data. A. is m

问题补充：

The Internet is the biggest information resource, which millions of pages of data.

A. is made up

B. makes up

C. is made of

D. consists of

答案：

A. is made up

B. makes up

C. is made of

(答案→)D. consists of

解析：考查动词短语。“由…组成”有两个短语be made up of=consist of;注意consist of没有被动语态，没有进行时；make up化妆，编造，弥补，组成；建议：网络是最大的信息来源，它是由成千上万的网页数据组成的。故D正确。