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轻松定制 100％完全可编辑的PowerPoint幻灯片 形状：完全可编辑的矢量图形
Whenever a doctor cannot do good, he must be kept from doing harm. -Hippocrates Time is generally the best doctor. -Ovid It is not the healthy who need a doctor, but the sick. I have not come to call the righteous, but sinners to repentance. -Jesus Christ
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