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62.Parents often faced the _________ between doing what they felt was good for the development of the child and what they could stand by way of undisciplined noise and destructiveness. A.paradox 似是而非的 矛盾的 悖论的 B.junction 交汇之处 C.dilemma 进退两难的境地 D.premise 前提 解析： betweenand 63.Clark felt that his _________ in one of the most dramatic medical experiments of all time was worth the suffering he underwent. A.apprehension 领悟 忧虑 B.appreciation C.presentation D.participation 参加(四级) the underwent 经历 | 
