A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161114/1479102032271075245_blob.png" title="8978641085482519" alt="blob.png"/>
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161114/1479102036553096489_blob.png" title="654180906889172" alt="blob.png"/>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161114/1479102041799031334_blob.png" title="32750116730520995" alt="blob.png"/>
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