(来学网)自然沉降法采集空气中微生物样品时采样高度为
  • A.
    (来学网)0.5~1.0m
  • B.
    (来学网)0.8~1.5m
  • C.
    (来学网)1.0~1.2m
  • D.
    (来学网)1.2~1.5m
  • E.
    (来学网)0.8~1.2m