(来学网)在工作场所空气检测中,溶剂解吸型活性炭管分前后两段,前后段一般各装多少量活性炭
  • A.
    (来学网)50mg,100mg
  • B.
    (来学网)150mg,100mg
  • C.
    (来学网)200mg,100mg
  • D.
    (来学网)100mg,50mg
  • E.
    (来学网)75mg,50mg