(来学网)粉尘是指悬浮于空气中的固体微粒,其直径为
  • A.
    (来学网)=0.1μm
  • B.
    (来学网)<0.1μm
  • C.
    (来学网)>0.1μm
  • D.
    (来学网)>或=0.1μm
  • E.
    (来学网)<或=0.1μm
正确答案:
C