一名新的大三的网络实习生将笔记本电脑连接到配线柜中的接入层交换机。配置终端仿真程序后，该名实习生按下 Enter 键，S1_ATC_E2＞ 提示出现。本可执行哪些操作以更好地保护交换机（）
A. 创建标语消息
B. 创建控制台密码
C. 使用 enable secret 命令
D. 使用 service password-encryption 命令
查看答案
_will it strike？ In twenty minutes’ time（）
A. When
B. How long
C. How long ago
D. How much
____ does he calls？ Once a month（）
A. How seldom
B. How long
C. How soon
D. How often
The total human environmental impact is related to（）
A. Industrial distribution
B. Population size
C. Social relations
D. Resource reserves
Which item is suit to describe the relationship between industry and improving of environmental quality（）
A. The operation of industrial system has nothing to do with environmental quality
B. The operation of industrial system is independent of the state of resources
C. Optimizing Industrial system can improve the relationship between Human and Environment
D. The operation of industrial system has nothing to do with human consumption pattern
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