(来学网)瞳孔缩小是自然光下,瞳孔直径小于
  • A.
    (来学网)1mm
  • B.
    (来学网)2mm
  • C.
    (来学网)3mm
  • D.
    (来学网)4mm
  • E.
    (来学网)5mm
正确答案:
B