题目

如图,过⊙O上一点C作⊙O的切线,交直径AB的延长线于点D,若∠D=40°,则∠A的度数为(     )    A.20°           B.25°       C.30°          D.40°   答案:B; — I’m hungry. I didn’t have breakfast.— I can _________ my cakes with you.A. choose B. share C. show D. expect
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