单选题："It is postulated that population trends have an effect on

题目内容：

"It is postulated that population trends have an effect on economic fluctuations. A．challenged
B．assumed
C．deducted
D．decreed

参考答案：

答案解析：

The number of United States citizens who are eligible to vo

The number of United States citizens who are eligible to vote continues to incr

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When Barth was a college student he often shopped at thrift shops ___________.A

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