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小明用两根同样长的竹棒做对角线,制作四边形的风筝,则该风筝的形状一定是( ) A...
小明用两根同样长的竹棒做对角线,制作四边形的风筝,则该风筝的形状一定是( )
A.矩形
B.正方形
C.等腰梯形
D.无法确定
考点分析:
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