题目内容
【题目】Effective treatments do exist, but __________ they are very expensive.
A. unfortunately B. particularly
C. independently D. privately
【答案】A
【解析】句意:有效的治疗确实存在,但不幸的是它们是非常昂贵的。unfortunately不幸地,遗憾地; particularly特别,尤其;independently独立地,自立地; privately私下地,秘密地。
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