For instance, in ancient times early humans moistened their bruises with saliva, extractedthorns that lodged in their flesh, and applied leaves or mud on their wounds.
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It was in this atmosphere that astronomy, including the calendar, mathematics, biology,geography, anthropology, psychology, and agricultural technology all began to flourish.
为确定接口的操作状态，要使用哪个命令?
A. interfacestatus
B. showinterface
C. showstatusinterface
D. displayinterface
为将当前运行的配置复制到启动配置文件，需要哪个命令?
A. copyrunning-configflash
B. copyrunning-configtftp
C. copyrunning-configstartup-config
D. copystartup-configrunning-config
哪个命令可以使用户在“Switch(config-if)# ”提示符下一次性的进入Switch#模式?
A. Ctrl+A
B. end
C. exit
D. exec
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