题目

根据你听到的对话和问题，选出最恰当的答案（） A . He ate too much. B . He drank too much. C . He didn't have meals all day. D . He didn't drink anything all day. 答案：C凸n边形各内角成等差数列，公差d=10°，最小内角为100°，则n=A.5或6B.9C.8D.8或9