Those physicians and specialists ______in their fight against heart disease.

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问题 Those physicians and specialists ______in their fight against heart disease.

选项 A、broke down
B、broke off
C、broke out
D、broke through

答案D

解析那些内科医生和专家们在同心脏病的斗争中取得了突破。break down意为“损坏；(健康等)垮掉，崩溃”； break off 中断，突然停止”；break out“爆发；逃脱”；break through“突围；取得突破性成就”。

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大学英语四级

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