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    【题目】He is a breast cancer_________, who has devoted all his time and energy to studying it.

    A.specialistB.physicianC.physicistD.surgeon

    【答案】A

    【解析】

    考查名词词义辨析。句意：他是一名乳腺癌专家，他投入了所有的时间和精力来研究乳腺癌。A. specialist专家；专科医生；B. physician内科医生；C. physicist物理学家；D. surgeon外科医生。根据空前定语“breast cancer(乳腺癌)”可知，他是一位这方面的专家。故选A项。

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