孩子大脑的发育得到一个聪明的孩子是每一对父母的希望。孩子是否聪明的前提取决于胎儿期大脑的发育情况。受孕后的第20天左右,胚胎中已有大脑原基存在;第2个月时,大脑里沟回的轮廓已经很明显;第3个月时,脑细胞的发育进入了第一个高峰时期; The development of a child’s brain Getting a smart child is the hope of every parent. Whether or not a child is clever depends on the development of the fetus’s brain. The first 20 days after conception, the embryo has been present in the brain primordial; the first 2 months, the outline of the brain ditch back has been very obvious; the first 3 months, the development of brain cells into the first peak period ;