倍投方案有哪几种

简介：Some people say that the Ming Dynasty did not die from Li Zicheng, nor from the Jianlu captives, but from natural disasters. Since the first year of Chongzhen, droughts and locust plagues have continued, and earthquakes have occurred more frequently. A small earthquake every two years and a large earthquake every three years. Under such circumstances, with people dying of hunger and corpses strewn across the fields, even if Zhu Yuanzhang and Zhang Juzheng were to come back to life, they would probably be left in dire straits.