妈妈和儿子的dna不同吗

Ji Shaolei seemed to be smiling bitterly when he spoke. At that time, Qiao Rong called my parents over and insisted on letting Qiao Jiakai fight me again in front of everyone. Qiao Jiakai didn't dare, but Qiao Rong actually grabbed him He threw him into the water tank. Man, it was winter!...