【摘 要】
：
刚出生的新生儿平均身高为50厘米,0～6个月时每月增长幅度为2.5厘米,后半年每月平均增长1.5厘米, 1岁时达75厘米,2岁时达85厘米,2岁以后平均每年增长5～7厘米,因此2～12岁平均身长
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刚出生的新生儿平均身高为50厘米,0～6个月时每月增长幅度为2.5厘米,后半年每月平均增长1.5厘米, 1岁时达75厘米,2岁时达85厘米,2岁以后平均每年增长5～7厘米,因此2～12岁平均身长可以按以下公式推算:
The average newborn birth weight was 50 centimeters, with a monthly increase of 2.5 centimeters from 0 to 6 months and an average monthly increase of 1.5 centimeters in the second half of the year, 75 centimeters at 1 year of age, 85 centimeters at 2 years of age and 2 years After an average annual increase of 5 to 7 cm, so the average length of 2 to 12 years old can be calculated according to the following formula:
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