Which two statements about the open and shared key wireless-authentication methods are true？（）
A. shared key authentication is considered more secure than open authentication
B. shared key authentication is considered less secure than open authentication
C. if the WEP keys do not match using the open authentication method， the client will not authenticate， associate， and transfer data
D. if the WEP keys do not match using the open authentication method， the client will still be able to authenticate and associate， but will not transfer data
E. if the WEP keys do not match using the open authentication method， the client will still be able to authenticate， associate， and transfer data
Linux中,杀掉显示器编号为1的vncserver，正确的命令是（）
A. vncserver kill :1
B. vncserver –kill 1
C. kill vncserver 1
D. vncserver –kill :1
未交存首期住宅专项维修资金的，开发建设单位可暂将房屋交付购买人。
A. 正确
B. 错误
《高层民用建筑设计防火规范》规定，设有火灾自动报警系统和机械防烟、排烟设施的高层建筑应设置消防控制室。
A. 正确
B. 错误
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