题目内容

OSI模型共分为哪几个层，简述每层实现什么功能？

查看答案

搜索结果不匹配？点我反馈

更多问题

She sat down beside me and ____________ about her working day.

A. consoled
B. groaned
C. imprisoned
D. clustered

Do you want to ___________ your friend who is broken-hearted?

A. saturate
B. degrade
C. console
D. groan

I am sorry your life is so _________________; I only wish I could help in some way.

A. dense
B. finite
C. trivial
D. burdensome

Although secondary education is __________________, parents are not required to send their children to state schools.

A. optional
B. compulsory
C. decisive
D. ambiguous