GRE

单选题Directions: Each sentence below has one or two blanks, each blank indicating that something has been omitted. Beneath the sentence are five lettered or sets of words. Choose the word or set of words for each blank that best fits the meaning of the sentence as a whole.
We did not discover that his apprehension concerning our hypothesis was __________ until well afterward, following a series of rigorous trials and revisions, at which point our experiment proved an unqualified success.

参考答案:A进入在线模考
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