A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20151112/1447292692803031394_blob.png" title="29591648414928186" alt="blob.png"/>
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20151112/1447292704673059085_blob.png" title="8431313652206563" alt="blob.png"/>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20151112/1447292716933056769_blob.png" title="7285742437833551" alt="blob.png"/>
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20151112/1447292727655052057_blob.png" title="6705363847931914" alt="blob.png"/>