题目内容
（请给出正确答案）
[主观题]
Compared with the 1970 unmarried low-income men, their 2007 counterpartsA．had even less ed
Compared with the 1970 unmarried low-income men, their 2007 counterparts
A．had even less education
B．had lower marriage rates
C．had slower growth in household income
D．had more trouble adjusting for inflation
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