Some scientists relegate parapsychology to the sphere of quackery 一些科学家把灵学归类到骗术范围。
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In a famous play by goethe , the doctor is accused of practicing quackery 在歌德的一部著名剧目里，一名医生被指控进行庸医行骗。
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The above two lacunae also resulted in the emergence of quackery and made it difficult to distinguish bonafide practitioners from quacks in absence of professional standards 上述两方面的空白也导致庸医的浮现，使得骗子与专业标准的鉴定变得困难。
