Passage Two [br] What does the author mean by "unknown unknowns cropping up"

游客2023-11-24 35

问题 Passage Two [br] What does the author mean by "unknown unknowns cropping up" in Para. 11?

选项

答案 Unexpected uncertainties suddenly occurring．

解析根据题干定位至第十一段。第十一段第一句提到，开发环节有很多不可避免的特征(指上文提到的有关成本的估算问题等)，加上人们都有认知偏差，因此计划总不可能是完全精确的，第十二段也指出计划只能是一个最佳的可能情况，而不是一个确定的承诺，再结合unknown和crop的字面意思，可知该词组在此处的意思是“意外情况突然出现”，故答案为“Unexpected uncertainties suddenly occurring．”。

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Passage Two [br] What does the author mean by "unknown unknowns cropping up"

PASSAGETWO[br]Whatdoestheword"taxing"meaninthefirstparagraph?Tiring．

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PASSAGETWO[br]Whatcanweknowaboutthevibration-detectingequipment?Itcan

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PASSAGEFOUR[br]WhatcanthesuccessofGooglebeascribedtoaccordingtothe

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