问题
单项选择题
不可以作为广域网的数据传输介质的是（）。
A.电话线
B.微波
C.双绞线
D.光缆
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
不可以作为广域网的数据传输介质的是（）。
A.电话线
B.微波
C.双绞线
D.光缆
参考答案：C
| 根据对话内容，从下面方框中选择适当的句子补全对话，使对话内容完整、通顺 。 | |
| Li Jun: Good morning,Doctor. Doctor: Good morning. 1.____ Li Jun: 2.____ I've got a pain here. Doctor: 3.____ Li Jun:Since yesterday evening. I couldn't sleep well last night. Doctor:Let me see. Do you feel the pain here? Li Jun:Yes. Is it very serious,Doctor? Doctor: 4.____ But you'd better stay in bed for two days. And I'd like you to take these pills three times a day. 5.____ Li Jun:Thanks a lot,Doctor. Doctor:You're welcome. | |
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