第35题: [单项选择]How did man manage to survive the "black cloud" in the tropics A. They hid in caves and cellars. B. They tried to reduce the temperature. C. They killed 7943 species of plants and animals. D. They ate ice so that the body temperature was reduced. 参考答案:A 答案解析:[解析] 事实细节题。根据文章第四段第二句:The survival of man himself was only possible because of the caves and cellars