题目

--I like documentaries ________ I like comedies. --I like comedies ________ I don't like documentaries. A.and;and             B.but;and              C.and;but 答案:C在△ABC中,AC=6,AB=8,BC=10,则(  )A.∠A=90°B.∠B=90°C.∠C=90°D.△ABC不是直角三角形
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