题目内容

The Internet, as _____ means of communication, has been popular since _____ early 1990s.

A. a ; the
B. a ; /
C. a ; an
D. the ; an

试题答案

A
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网