新生儿出生时血红蛋白量约为

  • A: 30g/L~60g/L
  • B: 61g/L~90g/L
  • C: 91g/L~120g/L
  • D: 150g/L~220g/L
  • E: 250g/L~350g/L

答案:

解析: