(来学网)人体每天叶酸需要量为
  • A.
    (来学网)0.2~0.4g
  • B.
    (来学网)0.2~0.4mg
  • C.
    (来学网)0.05~0.1mg
  • D.
    (来学网)0.2~0.4μg
  • E.
    (来学网)1~2g