HUB是工作在哪一层的？（） A.物理层 B.链路层 C.网络层 D.协议层 发布时间：2017-09-13 15:47 │ 来源：www.tikuol.com 题型：单项选择题 问题： HUB是工作在哪一层的？（）A.物理层B.链路层C.网络层D.协议层
题型：单项选择题 根据A 栏中的对话在B栏中选出相应的答案。 ( )1. What's the weather like? ( )2. Have an apple, please. ( )3. Would you like to go with me? ( )4. Where are they from? ( )5. Do you always get up at six? ( )6. Are you guessing English? ( )7. What's for supper? ( )8. Are you ready? ( )9. What's the temperature outside? ( )10. What time is it? A. Yes, we are. B. It's seven. C. It's fine. D. Yes. I'd love to. E. Thanks a lot. F. They are from American. G. Yes, I do. H. Fish and chicken. I. I'm coming. J. It's twenty degrees. 查看答案