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【17】的加密方式是首先将明文序列以固定长度进行分组，每一组明文用相同的密钥和加密函数进行运算。

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( )建立快速的信息交流渠道是掌握客户需求的也是缩短交付期的重要途径。

A. 对
B. 错

环境对计算机寿命的影响是不可忽视的。计算机理想的工作温度是10℃-30℃，太高或太低都会影响计算机配件的寿命。其相对湿度是30%-80%，太高会影响CPU、显卡等配件的性能发挥，甚至引起一些配件的短路；太低易产生静电，同样对配件的使用不利。另外，空气中灰尘含量对计算机影响也较大。灰尘太多，天长日久就会腐蚀各配件，芯片的电路板；含量过少，则会产生静电反应。所以，计算机室最好保持干净整洁。

Once there was a king. He lived in a beautiful city. His garden was full (41) lovely flowers. The king (42) silver (银的) bells on each flower. Then everyone heard the bells (43) and looked at the flowers. The garden was very big. (44) the gardener (园丁) didn’t know how big (45) A small bird lived in one of the trees. It (46) the nightingale (夜莺). It sang so beautifully. People told the king how much they liked the city, (47) when they heard the little bird, they all said, "Nothing is as (48) as the nightingale." And they talked (49) the bird for a long time. Men wrote books about the city and they always wrote (50) things about the nightingale.

A. gladly
B. beautiful
C. friendly

某人才网站的主页地址是：http：//www.chinahr.com，打开此主页，浏览“招聘信息”页面，查找“嵌入式”页面内容，并将它以文本文件的格式保存到指定目录下，命名为“embeded.txt”。