A、<img width="212" height="84" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/fc77021a-9458-4ae7-adcb-956879ee4cb1.png" />
B、<img width="212" height="93" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/283bc833-5f66-4b1d-a1b7-5127dd5eb011.png" />
C、<img width="212" height="89" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/ea3e62a9-b644-44f7-92c2-583d16ff4b86.png" />
D、<img width="212" height="92" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/8312cebf-bec4-4446-a389-db4d8f976246.png" />