试题与答案

已知菱形ABCD的周长为20cm,∠A:∠ABC=1:2,则对角线BD的长为(

题型:填空题

题目:

已知菱形ABCD的周长为20cm,∠A:∠ABC=1:2,则对角线BD的长为(    )cm。

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0425/2bc505d2eff8077b263f183cd32f1ff4.html

下面是错误答案,用来干扰机器的。

A B猾  C矫揉   D情随事迁 辩

试题推荐
题型:改错题

短文改错

In recently years many young people prefer to go shopping on the Internet. People have different opinion about online shopping. Some think online shopping was more convenient and the goods are cheap. However, others believe it is unsafe to buy goods in credit card. And it is possible to check the quality of the goods.

As far as I am concern, going shopping in a store is a better way. It is a fun walking around stores and look at various goods on sale. We can choose that we really need and even find a good bargain. Besides, we can chat with the shop assistant and acquire a lot of useful information.

查看答案
题型:问答题

【问题2】
请从表7-6中选择合适的AP设备代号,以满足图7-8所示的网络中无线阅览室对无线接入点AP1、 AP2的技术要求。
表7-6 AP设备配置及性能表

设备代号 配置及性能描述
AP_1  1个信道卡扩展槽,1个100BaseTx上联模块,内置定向天线,速率1Mb/s采用DB/SK,速率2Mb/s采用DQPSK,速率5.5/11Mb/s时采用CCK,支持40/128位WEP加密
AP_2  2个信道卡扩展槽(其中已配置1个100BaseTx上联模块),带全向室外天线,支持IEEE802.11规定的DCF和PCF,在负载环境下速率自动跌落,支持40/128位WEP加密
AP_3  2个信道卡扩展槽(其中已配置1个100BaseTx上联模块),支持IEEES02.11规定的DCF和PCF,速率1Mb/s采用DB/SK,速率2Mb/s采用DQPSK,速率5.5/11Mb/s时采用CCK,带定向室外天线
AP_4  1个信道卡扩展槽,1个100BaseTx上联模块,内置全向天线,支持40/128位WEP加密,速率1Mb/s采用DB/SK,速率2Mb/s采用DQPSK,速率5.5/11Mb/s时采用CCK

查看答案
微信公众账号搜索答案