A、<img width="159" height="41" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/03a59ade-b563-4e4f-b24f-1a7b7cacf0c1.jpg" />
B、<img width="138" height="65" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/933d925b-c220-4b03-a9a2-fa0ceb605011.jpg" />
C、<img width="159" height="45" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/998cbfdb-3405-46f9-8d1f-46ced2705240.jpg" />
D、<img width="138" height="65" src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/bbff7c01-713b-45b3-98f2-b303c9e61fd4.jpg" />