专四
单选题Optimism is a __________ shown to be associated with good physical health, less depression and longer life.
参考答案：B进入在线模考
【译文】乐观被证明是与身体健康、压力更少、寿命更长相关联的一种特性。
【解析】名词词义辨析题。trail“足迹，踪迹”；trait“特性，特质”；trace“痕迹，踪迹”；track“轨迹”。主语“乐观”应与“特性．特质”搭配，故选B。
【解析】名词词义辨析题。trail“足迹，踪迹”；trait“特性，特质”；trace“痕迹，踪迹”；track“轨迹”。主语“乐观”应与“特性．特质”搭配，故选B。
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