A、<img width="13" height="36" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/ea25bc08-c495-4719-a80b-989521dec893.png" />
B、<img width="24" height="39" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/e5652c69-0739-4d03-9182-9e7ad2688d55.png" />
C、2-<img width="21" height="20" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/4ed963bd-1273-4b6b-8980-ff7f50916e2a.png" />
D、<img width="21" height="20" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/4ed963bd-1273-4b6b-8980-ff7f50916e2a.png" />-1
A、<img width="13" height="36" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-19/15c86cdf-6b35-4220-96eb-7b5e8a3a487a.png" />
B、<img width="24" height="39" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-19/c2cb36ef-cb24-40a9-9168-7abc19e2f163.png" />
C、2-<img width="21" height="20" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-19/fd504d03-b8b9-4058-b73e-050622384aa1.png" />
D、<img width="21" height="20" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-19/fd504d03-b8b9-4058-b73e-050622384aa1.png" />-1
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