【多选题】下列选项关于Linux命令说法正确的是()
【简答题】如图所示,路由器RTA 连接有PCA 和PCB。如果需要在RTA 上启用ARP 代理以使RTA能够在PC之间转发ARP 报文,则下列哪项配置是正确的?____
【单选题】Reality television is a kind of television programming which, it is claimed, presents unscripted dramatic or humorous situations, documents actual events, and features ordinary people rather than prof...
A.
he agrees with the statement
B.
everyone agrees with the statement
C.
no one agrees with the statement
D.
he wants to distance himself from the statement
【单选题】Compared with public television, commercial television______.
A.
broadcast programs which don't advertise products
B.
have the right to choose programs for their audience
C.
have to broadcast programs that cater to preferences of their audience
D.
compete fiercely with other broadcasting stations
【单选题】删除用户组时,下列说法正确的是()。
B.
使用groupdel 可以直接删除带有用户的主组和附属组。
C.
使用groupdel 可以直接删除不带用户的主组。
D.
使用groupdel 不可以直接删除带有用户的附属组。