题目

如图,正方形ABCD的边长为3,正方形AEFG的边长为1. 若正方形AEFG绕点A旋转一周,则C、F两点之间的最小距离为         .(结果保留根号)   答案:She passed herself off ________ a servant into the nobleman’s house. A. as      B. for     C. by        D. to
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