(来学网)用石墨炉原子吸收光谱法测得尿铅浓度为100ug/L,同时用比色法测得尿中肌酐浓度为2.0g/L,校证后,尿铅浓度应表标为
  • A.
    (来学网)30pg/g
  • B.
    (来学网)40ug/g
  • C.
    (来学网)50ug/g
  • D.
    (来学网)60ug/g
  • E.
    (来学网)70pg/g