Which of the following is implied in the sixth paragraph?

Which of the following is implied in the sixth paragraph?A．Marriages in the US t

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Paragraph 6 ____________.

Paragraph 6 ____________.A．Importance of staying intellectually active B．Effects

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I have been trying to?guit?smoking.

I have been trying to?guit?smoking.A．give up B．pick up C．build up D．take up

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There is a growing gap between the rich and the poor.

There is a growing gap between the rich and the poor.A．conflict B．tension C．gulf

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投资效益是指投资活动所取得的成果与所占用或消耗的投资之间的对比关系，它不包括（　　）。

投资效益是指投资活动所取得的成果与所占用或消耗的投资之间的对比关系，它不包括（　　）。A．财务效益 B．行业效益 C．社会效益 D．国民经济效益

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