(来学网)五指并拢时,一只手掌的面积占全身体表面积的比例是( )
  • A.
    (来学网)0.5%
  • B.
    (来学网)1%
  • C.
    (来学网)2%
  • D.
    (来学网)5%
  • E.
    (来学网)9%
正确答案:
B