用“user add jerry”命令添加一个用户，这个用户的主目录是什么（)。A./home/jerryB./bin/jerryC./va

用“user add jerry”命令添加一个用户，这个用户的主目录是什么()。

A./home/jerry

B./bin/jerry

C./var/jerry

D./etc/jerry

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第1题

下表是用list命令显示的“运动员”表的内容和结构，以下题目使用该表。

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A.CHANGE TABLE 运动员 ADD 得分 1

B.ALTER DATA 运动员 ADD 得分 1

C.ALTER TABLE 运动员 ADD 得分 1

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第2题

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A、route add

B、ip route

C、default route

D、config route

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第3题

In the fields of physical security and information security,access control is the selectiv

e restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization（授权）．

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A.cooperates

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C.connects

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第4题

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Publicvoidmain(string[]args)

{

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