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    精英家教网 > 高中英语 > 题目详情
    Scientists are hoping for a _____ in the search for a cure for cancer.
    A．breakthroughB．breakC．dealD．progress
    A
    考查名词：A. breakthrough 突破B. break休息C. deal交易 D. progress 进步，句意：科学家希望在研究癌症的疗法上能有突破。选A。
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