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参与互动提升消费者福利是自由贸易理论的重要基石之一。在国际贸易中，提升消费者福利的主要途径就是进口本国不能生产或生产不具备成本优势的产品，扩大消费者可选择的商品范围，满足多样化多层次的消费需求，降低消费品价格，从而增加消费者效用。
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火山学家史考特(BradScott)谈到这条深20米、长200米的裂缝时表示，这相当壮观，比他平常看到的还要大得多。他指出，出现天坑的乳牛牧场就位在长期休眠的火山口上。
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