题目内容：
The passage tells us about __________radio, telephone, television and vision-phone.
A．the wide use of B．the invention of
C．the differences of
D．the instructions for using
参考答案：
答案解析：
单选题：The passage tells us about __________radio, telephone, telev
- 题目分类：英语(一)
- 题目类型：单选题
- 查看权限：VIP
B．the invention of
C．the differences of
D．the instructions for using