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(2009•北京)如图,AB为⊙O的直径,弦CD⊥AB,E为上一点,若∠CEA=...
(2009•北京)如图,AB为⊙O的直径,弦CD⊥AB,E为
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上一点,若∠CEA=28°,则∠ABD=
度.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230657536270175/SYS201310212306575362701011_ST/images1.png)
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