下列选项中，哪一项不属于FTP服务器配置的主要参数( )。
A．组 B．域C．命名用户 D．管理用户
参考答案：D
The practice of hanging clothes across the street is a common _____ in many parts of the city. [ ]
A. look
B. sign
C. sight
D. appearance
班集体
