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【正文】 學(xué)齡期 School Age from 67 years old to adolescence Feature growth bees steadier intelligence development bees more mature increasing desire of knowledge decreasing incidence of diseases 年齡分期 青春期 Adolescence from the appearance of 2nd sexual character to genitality maturity and growth pletion girl 1112yrs1718yrs Boy 1314yrs1820yrs Feature growth amp。 mortality are very high 年齡分期 嬰兒期 Infancy from delivery to 1 year old Features rapid growth period fastest brain growth nutrition amp。
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