题目内容

(2018多选)win7资源管理器中,如果要选定某个文件类中的所有文件的或文件夹,可以()。

A. 单击“编辑”到菜单,然后选择“全选”
B. 单击“文件”菜单,然后选择“全选”
C. 按Ctrl+A快捷键
D. 按Ctrl+C快捷键

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