搜题请搜索小程序“爱下问搜题”
问题 单项选择题

以太网中如果发生介质访问冲突，按照二进制指数后退算法决定下一次重发的时间，使用二进制指数后退算法的理由是（）。

A．这种算法简单

B．这种算法执行速度快

C．这种算法考虑了网络负载对冲突的影响

D．这种算法与网络的规模大小无关

答案

参考答案：C

单项选择题 B型题

金钱草除利尿通淋外，又能（）

A.除湿退黄

B.祛风止痒

C.凉血止血

D.清心除烦

E.破血通经
查看答案
填空题



I’d like to talk about (1) in England and Wales, and in England and Wales there are (2) of council. For instance, if I could take the example of Oxfordshire, there is (3) where they are responsible for education, (4) , structure planning, highways, (5) , and so on. And there are (6) district councils, again in Oxfordshire, and they are (7) , in particular council housing, for local plans, for (8) , environment health, and they’re also responsible for (9) , and in Oxford, for instance, they are building an ice-rink (10) of the city.
If we could (11) the question of education, I think this would (12) of local government in the (13) . First of all, there is a minister at (14) level. He is the (15) for Education and he’s responsible for running a (16) education system in the (17) . But (18) there is a lot of local control. So the local councils, (19) such as Oxfordshire County Council, actually run the schools and colleges in their (20) .
查看答案