Cortisol is released into the bloodstream during stressful experiences.

admin2022-08-09  29

问题 Cortisol is released into the bloodstream during stressful experiences.

选项 A、正确
B、错误

答案A

解析 原文说:This chemical(cortisol)is released into the bloodstream during stressful experiences.题目和原文一致,所以,是正确的。
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