问题
单项选择题
不是局域网主要采用的传输介质的是( )。
A．双绞线
B．同轴电缆
C．光纤
D．微波
答案
参考答案：D
解析： 局域网在网络传输介质上主要采用了：同轴电缆，双绞线，光纤。
搜题请搜索小程序“爱下问搜题”
不是局域网主要采用的传输介质的是( )。
A．双绞线
B．同轴电缆
C．光纤
D．微波
参考答案：D
解析： 局域网在网络传输介质上主要采用了：同轴电缆，双绞线，光纤。
| 用括号内所给动词的适当形式填空。 |
| Henry and Charlie were good friends. They worked in a shop. These days Henry did not come to work, but Charlie did not know why. The shopkeeper said there were too many workers in the shop, so he 1 _________ (send) some away. Charlie heard of it and wanted to tell his friend Henry about the shopkeeper's plan. He went to him after supper. When he got there, he 2 _________ (meet) Henry's wife at the door. "Henry 3_________ (go) out, hasn't he?" asked Charlie. "No, he 4 _________ (be) in bed," answered the woman. "What's wrong with him?" "He 5_________ (not feel) well," said his wife. "What on earth is happening?" "He 6 _________ (not fall) asleep the whole night." Charlie went into the bedroom and saw his friend 7 _________ (lie) in bed, crying loudly in pain. "Have you seen a doctor, Henry?" asked Charlie. "Not yet," said Henry, "My wife bought some medicine for me and I took some just now." "You'd better 8 _________ (go) to see a doctor. They will help you, I think." "Sorry, I 9 _________ (not agree) with you," said Henry, "Last year I had a terrible stomachache, the doctor cut off part of my stomach. Last week I got a bad toothache and the dentist had my tooth 10 _________ (pull). God knows what the doctor will do with my head this time!" 1.______ 2.______ 3.______ 4.______ 5.______ 6.______ 7.______ 8.______ 9.______ 10.______ |