Scientists have made a __________ in their combat against the AIDS.

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问题 Scientists have made a __________ in their combat against the AIDS.

选项 A、breakup
B、breakdown
C、breakthrough
D、breakout

答案C

解析科学家们在治疗艾滋病方面取得了突破。本题是考查形似合成词的词义。breakup“崩溃，停止，解散”； breakdown“(机器等的)破损，故障”；breakthrough“突破性的进展，突破点”；breakout“爆发；越狱，逃亡”。

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大学英语六级

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