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【单选题】
不同类商品的需求弹性也是不同的，为了揭示某种商品及其在某一价格的弹性高低，通常根据需求弹性系数大小进行分类，下列选项中，被称为需求富有弹性的是( )。
A.
|Ed|＞1
B.
0＜|Ed|＜1
C.
|Ed|=∞
D.
|Ed|=1
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