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孕前服用叶酸片是非常必要的,它已被证实与胎儿的神经管畸形有着密切关系。()
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孕前服用叶酸片是非常必要的,它已被证实与胎儿的神经管畸形有着密切关系。()
A、正确
B、错误
时间:2021-09-02 13:36
关键词:
联大
玉林师范学院
优生学
答案解析
A
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