进一退二法倍投法详解简介：Emperor Chongzhen summoned Zhang Jinyan to the palace. Facing the elders, Zhang Jinyan talked eloquently about internal and external military affairs. At first glance, he seemed quite capable.
Emperor Chongzhen summoned Zhang Jinyan to the palace. Facing the elders, Zhang Jinyan talked eloquently about internal and external military affairs. At first glance, he seemed quite capable.
