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【单选题】
Choose the best translation Many economists believe that advertising helps increase competition·which leads to lower prices,thus benefiting consumers and the economy as a whole.
A.
许多经济学家认为。广告增加了竞争的成本，使商品质量不断下降．这就使消费者的经济利益受到 损害。
B.
许多经济学家相信。广告加剧了竞争，又降低了商品的价格，所以消费者和整个经济都会从中得到 好处。
C.
许多经济学家坚信，广告会加剧竞争，过度的竞争致使商品质量低劣．从而影响消费者整体的经济 利益。
D.
许多经济学家认为，广告有助于竞争，而竞争的加剧会降低商品价格，从而使消费者和经济在整体 上受益。
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