题目

如图,菱形ABCD的对角线AC=4cm,把它沿着对角线AC方向平移1cm,得到菱形EFGH,则图中阴影部分图形的面积与四边形EMCN的面积之比为········································································· (  ) A.4∶3                      B.3∶2                       C.14∶9                     D.17∶9 答案:C
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