单选题
From the Paragraph 1, we can see that beginning in the 1970s ______.
A、
income became more unequal
B、
income became more equal
C、
income became more unstable
D、
income became more stable
【正确答案】
A
【答案解析】
从Beginning in the 1970's，however，this period of stability ended，as the first signs of widening income inequality became apparent可以得出结论。
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