问题
填空题
构成通信网的基本要素是（）、传输设备和交换控制设备。
答案
参考答案：终端设备
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构成通信网的基本要素是（）、传输设备和交换控制设备。
参考答案：终端设备
| 阅读理解。 | |
| Welcome to my home. Look, this is my father. He is sitting on the sofa and watching TV. He likes sport programs best. Yao Ming is his favorite sport star. The old man and old woman are my grandparents. They are sitting on the chairs near the window. They are drinking tea and chatting (闲谈) happily. The woman with long hair is my mother. She is cooking dinner for us in the kitchen. It's her favorite job at home. She can cook much delicious food by h | |
Who | What is/are doing? |
I | 1 |
2 | playing computer games |
grandparents | 3 |
my father | 4 |
my mother | 5 |