(来学网)正常人手指末节掌侧皮肤的两点区分试验距离为
  • A.
    (来学网)1~2MM
  • B.
    (来学网)2~3MM
  • C.
    (来学网)3~4MM
  • D.
    (来学网)4~5MM
  • E.
    (来学网)5~6MM