16个数字每12个一组有多少种组合

简介：Old Xia, who was often seen in the security room at the gate of the community, was also missing. After asking that old man, I found out that Mr. Xia had suffered a cerebral thrombosis and was sent to the military hospital by his son Xia Mingchen. Fortunately, there was no cerebral thrombosis. A burst blood vessel in the skull is not life-threatening, otherwise it would have happened. This can be considered a blessing among misfortunes.