【判断题】People today live in “smart” houses.
【判断题】完整的网络体系中,只需要在内外网连接处部署防火墙即可,不需要多处部署。
【单选题】Jane has to stay here all day, __________?
【简答题】Today, over _____ people live in America.
【简答题】Working-class parents teach their children to be obedient and show respect to s.