2. 外语
  3. Optimism is a______shown to be associated with good physical health, less depression and longer life.

Optimism is a______shown to be associated with good physical health, less depression and longer life.

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问题 Optimism is a______shown to be associated with good physical health, less depression and longer life.
选项 A、trail
B、trait
C、trace
D、track
答案B
解析 B选项trait意为“品质，特质”。根据句意： “乐观是与身体健康、抑郁减轻以及更长寿命相关的特质”，故选B。 在其他三项中，A选项Vail：痕迹，踪迹；C选项trace：痕迹，踪迹；D选项track：轨道，踪迹，都不符合句意。
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