A study published in the British Medical Journal showed that women who ate nuts more than five times a week were about one third less likely to suffer from coronary heart disease than were those who ate no nuts at all.
than were those who ate
than those who ate
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实在不理解为什么多出来一个were?不是人比人么……句子看懂了也做不对:(
不是人比人,是两种人患上病的概率的对比。
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