A、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/8c96a587-4f0e-44ff-bd3f-0323240b2a70.jpg" width="52" height="37" />
B、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/842d05b2-f0d3-4b1c-8091-b9aeb9526bbc.jpg" width="56" height="41" />
C、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/6ccfa9fb-0a9f-42ab-adcd-94cc4e7593c0.jpg" width="93" height="41" />
D、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/d1928c1c-2a26-4515-8f26-08e33b158d1c.jpg" width="99" height="33" />