单选题 An appropriate-for-gestational-age neonate should weigh
A. between the 10th and the 90th percentiles for age.
B. at least 2,500 g (5 lb, 8 oz).
C. between 2,000 and 4,000 g (4 lb, 6 oz and 8 lb, 12 oz).
D. in the 50th percentile.

【正确答案】 A
【答案解析】Appropriate-for gestational-age neonate weights fall between the 10th and the 90th percentiles for age. Large-for-gestational-age weight is above the 90th percentile, and small-for-gestational-age is below the 10th percentile for age.