It is postulated that a cure for the disea
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It is postulated that a cure for the disease will have been found by the year 2020.
A:challenged B:assumed C:deducted D:decreed
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答案：B
本句意思：假设到2020年将能发现治愈该疾病的方法。postulate假定，假设。assume 假设；challenge挑战；deduct扣除；decree裁定，判决，颁布。