题目

中心角为135°的扇形,其面积为B,其围成的圆锥的全面积为A,则A:B为(    ) A.11:8              B.3:8           C.8:3           D.13:8 答案:AThe police are offering ______ reward of $50,000 for information leading to the arrest of _____ murderer. A. the; the             B. a; a           C. the; a          D. a; the
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