毛泽东经常看书看得很晚,他的保健医生徐涛很担心他的身体,劝他多休息,但是他不听。后来,徐涛发现毛泽东喜欢聊天,就找机会和毛泽东到户外散步聊天。有一天,两人出去散步,毛泽东说:“我在湖南读师范的时候,喜欢社会科学,自然科学的书读得不多,还得补课。”徐涛说:“我正好相反,社会科学的书读得太少,现在也得补课。”毛泽东兴致来了:“我们以后多聊点自然科学吧。”后来,他问徐涛:“石油怎么开采?怎么炼?有哪些用途?”徐涛回答不 Mao often read books very late, his health care doctor Xu Tao is very worried about his body, advised him to rest, but he did not listen. Later, Xu Tao found Mao Zedong like to chat, find opportunities and Mao Zedong to walk outdoors to chat. One day, the two went out for a walk. Mao Zedong said: “When I was a teacher in Hunan, I liked social sciences and did not read much in the books of natural science.” Xu Tao said: “I’m just the opposite. Scientific books read too little, and now have to make up classes. ”Mao Zedong came:“ We talk more about natural science later. ”Later, he asked Xu Tao: “ How oil exploitation? Use? ”Xu Tao answer no