【单选题】【消耗次数：1】
Photoshop中如果想在现有选择区域的基础上增加选择区域，应按住下列哪个键?
①
Shift
②
Ctrl
③
Alt
④
Tab
参考答案：
复制
纠错
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按住Ctrl键在Photoshop中的空白区域双击可以实现____________
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新建一个空白文档
②
新建一幅图片
③
打开一幅图片
④
只能打开一幅扩展名为.psd的文件
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For
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