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答:早产儿(未成熟儿):是指胎龄少于259天(不到37周足),一般出生体重都不足2,500g,身长不到46cm的活产婴儿。其特点是生理功能未臻成熟。足月小样儿:一般是指胎龄在38～42周,出生
A: premature infants (immature children): refers to gestational age less than 259 days (less than 37 weeks), the general birth weight less than 2,500 g, less than 46cm live births infants. It is characterized by a lack of maturity of the physiological function. Full-term baby: Generally refers to gestational age at 38 to 42 weeks, was born