单项选择题
A.月经干净后1~3d B.月经干净后3~7d C.月经干净后7~10d D.月经干净后10~12d E.月经干净后12~15d
A.400ml B.600ml C.800ml D.1000ml E.1200ml
A.胎脂 B.胎粪 C.毳毛 D.脱落上皮细胞 E.激素