A、<img width="119" height="29" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/1314ef6d-89fb-41a5-99c2-4e9eeb9c08c8.png" />
B、<img width="123" height="33" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/77b6f407-9d68-4cf8-9ce3-880c08009dad.png" />
C、<img width="124" height="28" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/3b1c12f5-2b6b-411f-946f-1639fc2d1652.png" />
D、<img width="123" height="30" src="http://admintk.100xuexi.com/UpLoadImage/2016-09-29/1a8a9494-0dc4-4729-bbac-d57be731e11b.png" />
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