A、<img width="75" height="102" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/d33fa316-4d84-480a-a8c7-8bdb6eb693ef.png" />
B、<img width="85" height="97" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/a2c06510-4d41-4543-a9f6-4fffc7b042d4.png" />
C、<img width="87" height="100" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/73a9477b-ebf2-43c6-9433-e7cafbb6be7e.png" />
D、<img width="91" height="105" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/20b97e4d-8fb1-4bd5-b04c-5b67bc1306d8.png" />