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【单选题】
(21)要在命令按钮控件上显示图像应
A.
设置Picture
B.
实现不了
C.
先将Style设置为1,然后再设置Picture属性
D.
以上都不对
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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E.
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A.
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B.
错误
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A.
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B.
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C.
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D.
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