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准备怀孕的妇女每天服用叶酸片,应从孕前()时候开始
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准备怀孕的妇女每天服用叶酸片,应从孕前()时候开始
A、3个月
B、4个月
C、2个月
D、1个月
时间:2021-09-01 20:15
关键词:
联大
玉林师范学院
优生学
答案解析
A
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准备怀孕的妇女每天服用叶酸片,应从孕前()时候开始
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