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【多选题】关于使用总账系统制单，下列描述中正确的有（ ）。
A.
可查看任意科目的最新余额
B.
可控制操作员使用科目的权限
C.
凭证可按任意格式的文本文件引入和引出
D.
不能修改和删除其他子系统生成的凭证
【单选题】How to Use the Sense of Smell Our sense of smell, which we normally take for granted, is nowadays being increasingly used for purposes which might surprise us if we aware of them. One area in which sm...
A.
3) preferred ______.A. the smell of shoes to that of flowersB. the smell of flowers to that of shoesC. the shoes in the room with purified airD. the shoes in the room with appealing smells