(来学网)丙种工作条件,年照射有效剂量当量不得超过
  • A.
    (来学网)5mSv
  • B.
    (来学网)8mSv
  • C.
    (来学网)10mSv
  • D.
    (来学网)12mSv
  • E.
    (来学网)15mSv