80、在文件夹窗口中已选定所有文件，如果要取消其中几个文件的选定，应进行的操作是______。A.用鼠标左键依次单击各个要取消选定的文件B.用鼠标右键依次单击各个要取消选定的文件C.按住Shift键，再用鼠标左键依次单击各个要取消选定的文件D.按住Ctrl键，再用鼠标左键依次单击各个要取消选定的文件 - 查题网

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80、在文件夹窗口中已选定所有文件，如果要取消其中几个文件的选定，应进行的操作是______。
A.用鼠标左键依次单击各个要取消选定的文件
B.用鼠标右键依次单击各个要取消选定的文件
C.按住Shift键，再用鼠标左键依次单击各个要取消选定的文件
D.按住Ctrl键，再用鼠标左键依次单击各个要取消选定的文件

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