A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161111/1478854170400037346_blob.png" title="2442874729387109" alt="blob.png"/>
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161111/1478854175117002736_blob.png" title="9364956477687048" alt="blob.png"/>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20161111/1478854178975077968_blob.png" title="6127627111506724" alt="blob.png"/>