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Barrett wanted to find out if the absence of physical currency does indeed cause a person to spend more, so she decided to conduct an experiment a few months ago.
2017年6月六级真题（第二套）听力 Section C
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Claer Barrett, the editor of financial times Money, says the Western world is headed toward a world without physical currency.
2017年6月六级真题（第二套）听力 Section C
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During the experiment, Barrett took a train ride.
2017年6月六级真题（第二套）听力 Section C