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亲爱的姐妹们,美丽的春天已悄然而至,万物复苏,处处一派生机,一年之计在于春,如果您在期待爱的结晶,您准备好了吗?卵子是怎样产生和排出的?卵子来自女性的性腺卵巢,是女性生殖细胞,是一种无色半透明的圆球形细胞。女子到了青春期,在脑垂体所分泌的激素刺激下,卵巢在每个规则的
Dear sisters, the beautiful spring has quietly come, all things revive, full of vitality, a year plan is spring, if you are looking forward to the crystallization of love, are you ready? How is the egg produced and discharged? Gonadal ovaries from women, is a female reproductive cells, is a colorless translucent spherical cells. Women to adolescence, the hormone secreted by the pituitary gland stimulate the ovaries in each regular