The patient’s intelligence has been ______ by a brain injury.

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问题 The patient’s intelligence has been ______ by a brain injury.

选项 A、spoiled
B、marred
C、impaired
D、undermined

答案C

解析 动词辨析题。选项C impair意为“削减,减损”,造成力量、价值或质量等的减少;选项A spoil意为“搞坏”,毁坏到不可修补的地步;选项B mar尤指外形的破坏,损害…的健全、完美或完整;选项D undermine意为“逐渐损坏;暗中破坏,削弱、伤害”。
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