A、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/b9941ba4-1036-4fdd-982e-148abe4aef39.jpg" width="52" height="45" />
B、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/101b3789-b931-40cc-a554-f826a9484e4a.jpg" width="49" height="50" />
C、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/936f99fd-ae59-47a9-baaa-a5d22f9b5ade.jpg" width="50" height="51" />
D、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/09a326f1-0ab4-47c6-b18a-6d0600ea7dae.jpg" width="52" height="49" />