A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161104/1478223502991078207_blob.png" title="6106606610746197" alt="blob.png"/>
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161104/1478223509632056531_blob.png" title="7927139802226291" alt="blob.png"/>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161104/1478223517747020777_blob.png" title="6970712601605613" alt="blob.png"/>