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【多选题】
下面将背景层转换为普通的图象图层操作正确的有( )。A.
通过拷贝粘贴的命令可将背景层直接转换为普通图层
B.
通过“图层”菜单中的命令将背景层转换为图层。
C.
图层调板中的背景层，并在弹出的对话框中输入图层名称。
D.
背景层不能转换为其它类型的图层。
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