9岁男孩,营养发育正常,体重26kg,身长133cm,头围53cm,胸围最可能是()

岁男孩,营养发育正常,体重26kg,身长133cm,头围53cm,胸围最可能是() A. 53cm B. 57cm C. 61cm D. 63cm E. 65cm 答案:C Explanation: The most likely chest circumference for a normally developing boy of this age, weight, and height is given as 61cm. The chest circumference is generally larger than the head circumference, and 61cm falls within the range that would be expected for a healthy boy of the described characteristics.