单选题：回答(49)题

题目分类：理工类
题目类型：单选题
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回答(49)题 A．Nobody is poor in the US.
B．The top 0.01 percent of households has seen its tax bite fall by a full 25 percentage points since 1980.
C．For upper class families they have risen 41 percent.
D．Now it is 9.8 times.
E．As it does so, the possibility to cross that gap gets smaller and smaller.
F．All one has to do is to work hard and climb the ladder towards the top.

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