A、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/74704a74-9bd4-4fbc-9f15-2ded96c88393.jpg" width="117" height="39" />
B、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/7ffadcc6-2d60-4f25-b246-c19c52d4afa8.jpg" width="135" height="38" />
C、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/ec80072d-4a0a-46fa-8a84-5263c75b3610.jpg" width="134" height="39" />
D、<img src="http://admintk.100xuexi.com/UpLoadImage/2013-05-07/ed12680f-bad6-44e6-b6a5-1eb0dfee20de.jpg" width="134" height="40" />
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