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

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

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While serving in the Senate in the early 1970s, Barbara Jord

While serving in the Senate in the early 1970s, Barbara Jordan supported legisla

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Alan says that ordinary people who live in the town will pro

Alan says that ordinary people who live in the town will probably soonA．open new

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