A、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/cb09cb39-d017-4fe9-811e-e270f166b608.jpg" width="57" height="37" />
B、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/3b98a4f0-d911-4028-977f-db8d54b3b39d.jpg" width="53" height="40" />
C、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/e7eecfe3-5afb-49b7-b574-88e89e279cf7.jpg" width="96" height="40" />
D、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/d8b9b103-6bcc-47d1-8127-394dd857bac3.jpg" width="96" height="36" />