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                          1. <legend id='sneteery'><style id='w3whv0wg'><dir id='eoank1k3'><q id='l2agh21a'></q></dir></style></legend>
                          2. 预防遗传病最主要的方法(预防遗传病的方法)

                            作者:admin 来源:未知 2020-10-01   

                            遗传病很可怕。但如果及早预防,其危害可以相对减少。遗传病早在胚胎时期就开始萌发,甚至在精子和卵子结合时也开始萌发。在择偶或生育时,要思考如何预防遗传病,这也是实

                            遗传病很可怕。但如果及早预防,其
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