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【多选题】
系统管理员应该采用的安全措施有()A.
把root密码告诉每一位用户
B.
设置tclnet服务来提供远程系统
C.
经常检测账户数量、内存信息和磁盘信息
D.
当员工辞职后,立即删除该用户账户
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举一反三
【单选题】Who were some of the earliest Confucians?
A.
emperor relatives
B.
thinkers
C.
the man who hosted and lead rituals as a part ot their lob
D.
officials
【单选题】Who were some of the earliest Confucians?
A.
thinkers
B.
the man who hosted and lead rituals as a part of their job
C.
officials
D.
emperor relatives
【单选题】听力原文： From the earliest days, people have wanted to keep some record of their achievements. Thus they build monuments, or they tell stories from parents to children, or they write things down. To give...
A.
They build monuments.
B.
They tell stories from parents to children.
C.
They write things down.
D.
They make professional historians part of their governments' staffs.
【单选题】下列关于链传动运动特性的描述中,( )是不正确的。
A.
平均传动比准确，传动效率较高，承载能力大
B.
在同样使用条件下，结构尺寸较带传动紧凑
C.
既可用于平行轴间的传动，也可及用于非平行轴间的传动
D.
工作时冲击和噪声较大，磨损后易发生跳齿
【简答题】In earliest times, men considered lightning to be one of the great mysteries of nature. Some ancient people believed that lightning and thunder were the weapons of the gods. In reality, lightning is a...
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