进一退二法倍投法详解简介：The deaths caused by the plague made the people change their minds when they heard about it. At one time, there was a phenomenon of throwing sick patients outside to die, or even throwing them into the river to drown.
The deaths caused by the plague made the people change their minds when they heard about it. At one time, there was a phenomenon of throwing sick patients outside to die, or even throwing them into the river to drown.
