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话题账号有两种类型，管理员和编码员，区别在于：
管理员可执行全部管理操作，如建立和管理数据库、修改编码结果和统计分析等；编码员仅能进入到编码页面，执行人工内容编码操作。
如果想增加管理员数量，可【升级】话题哟！