如图,ABCD为⊙O的内接四边形,E为AB上一点,∠CBE=50°,则∠AOC=( )
A:25°
B:50°
C:100°
D:130°
Jane's grandmother had wanted to write children's book for many years, but one thing or another always got in way.
我能照样子写词语。
例1:刹那间(表示时间极短)
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例2:忠心耿耿(ABCC)
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