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【简答题】
假定提供Web服务的两台Linux服务器IP地址分别为192.168.1.10和192.168.1.20。为了使用DNS循环机制，由主机名www.test.com对外提供一致的服务，需要在DNS服务器的test.com区域文件中增加下列内容： www1 IN (8) 192.168.1.10 www2 IN (8) 192.168.1.20 www IN (9) www1 www IN (9) www2 通过DNS的循环机制，客户访问主机www.test.com时，会依次访问IP地址为192.168.1.10和 192.168.1.20的WWW主机。请将以上文件(8)～(9)空缺处的内容填写完整，完成对test.com文件的配置。
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皮皮学刷刷变学霸
举一反三
【单选题】当()时,蛋白分子带负电,可结合于阴离子交换剂上;当()时,蛋白分子带正电,可结合于阳离子交换剂上。
A.
pH > pI;pH > pI
B.
pH > pI;pH< pI
C.
pH< pI;pH> pI
D.
pH< pI;pH< pI
【单选题】I have a _________ daughter, she is a middle school student. [ ]
A.
thirteen years old
B.
three-year-old
C.
twelve-year-old
D.
fourteen-year old
【简答题】Police in America were looking for a thir-year-old boy, Ben. He was a middle school student. He was lost last Friday night. Ben’s mother went to bed early that evening because she had a bad cold. ...
【简答题】Mary is a thir-year-old girl. She had a bad cold yesterday. She didn’t want to eat anything. Her mother took her to see the doctor. The doctor gave her a bottle of medicine and told her to take it...
【简答题】微机型继电保护与自动装置堂上作业
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