Over years, scientists have made a great in the treatment of cancer.A. break-inB. breakthr

发布时间：2020-08-16 13:50:14


Over years, scientists have made a great     in the treatment of cancer.
A. break-in
B. breakthrough
C. breakup
D. breakdown

网友回答

A. break-in
(答案→)B. breakthrough
C. breakup
D. breakdown
解析：词义辨析。     A. 闯入  B.突破   C. 解体  D. 故障；崩溃。句意：过去几年中我们在癌症的治疗方面取得了巨大的突破。故选B。
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