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假设规定最低工资为2000元，最高工资为5000元，则工资字段的有效性规则应设置为（）

A. 2000=2000and<=5000
B. >=2000or<=5000
C. 2000=

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关于DES算法的描述中，正确的是（）

A. 由ISO制定
B. 密钥长度为56位
C. 分组长度为128位
D. 每轮的置换函数不同

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有了信息后，我们的办公再不要纸张了。

A. 正确
B. 错误

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TestKing.com has two SQL Server 2005 computers named SQL1 and SQL2. Both servers take part in replication. SQL1 is both the Publisher and its own Distributor of a publication named Pub1. Pub1 is the only publication on SQL1， and SQL2 is the only Subscriber. Your supervisor requests a status report about the replication latencies. Using Replication Monitor on SQL1， you need to find out the current latencies between the Publisher and Distributor as well as between the Distributor and Subscriber. What should you do？（）

A. Select the Subscription Watch List tab for SQL1. View the Latency column for the SQL2 subscription.
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《关于实行党政领导干部问责的暂行规定》规定，引咎辞职、责令辞职、免职的党政领导干部，（）内不得重新担任与其原任职务相当的领导职务。

A. 6个月
B. 1年
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假设规定最低工资为2000元，最高工资为5000元，则工资字段的有效性规则应设置为（）

A. 2000=2000and<=5000 B. >=2000or<=5000 C. 2000=

关于DES算法的描述中，正确的是（）

有了信息后，我们的办公再不要纸张了。

《关于实行党政领导干部问责的暂行规定》规定，引咎辞职、责令辞职、免职的党政领导干部，（）内不得重新担任与其原任职务相当的领导职务。

A. 2000=2000and<=5000
B. >=2000or<=5000
C. 2000=