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【简答题】
用所给词的适当形式填空。 1. The family goes shopping ______ (two) a week. 2. Lucy has a ______ (stomach) today. So she goes to see the doctor. 3. Tom and Jim ______ (play) soccer on the playground now. 4. It's important to eat ______ (health) food 5. Our teacher is ______ (friend) to us. 6. Look! Nancy isn't reading. She ______ (write) a letter. 7. I am ______ (stress) out because my English isn't improving. 8. He ______ (play) the guitar every day. 9. It's a beautiful ______ (sun) day. 10. Can you stop ______ (come) here, Kate? I need your help
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举一反三
【单选题】● Windows系统中，在排除DNS域名解析故障时，需要刷新DNS解析器缓存，使用的命令是 __ 。
A.
ipconfig/renew
B.
ipconfig/flushdns
C.
netstat -r
D.
arp -a
【单选题】DNS解析是( )
A.
将 IP 地址映射为一个 DNS 名称的过程
B.
将DNS 命名空间映射到 DNS 区域的过程
C.
将域名映射为一个 IP 地址 (或其他请求的资源) 的过程。
D.
查找域名服务器的DNS名称的过程