含X基因的精子在酸性環境下活力較強。因此,陰道內酸性時,多生女,中性和偏堿性時,多生男。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy