题目5个月正常婴儿体重约为()A. 4 kgB. 7 kgC. 9 kgD. 10 kgE. 11 kg5个月正常婴儿体重约为()A. 4 kgB. 7 kgC. 9 kgD. 10 kgE. 11 kg题目解答答案B. 7 kg