In the seventh sentence of ParA.3, 'such a reaction' refers back to______. A.losing heart at the signs of difficulties B.responding to crises quickly C.reaction to stress both chemically and physically D.making a choice between flight or fight
A.A.losing B.responding C.reaction D.making
【参考答案】
C 解析：本题是一道词语含义类问题。问文章第三段第七句话中的such a reaction是指什么。根据上下文，......