婴儿来自母体的_____抗体多于生后_____消失。
初生时白细胞总数为_________________,生后6~12h达________________,1周时平均为___________,婴儿期白细胞数维持在____________。
— What would you like to have, meat or fish?
— _____________________.
— ___________________
— Once or twice a week.
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