A.O2的彌散系數(shù)相當(dāng)于CO2的21倍 B.O2的彌散系數(shù)相當(dāng)于CO2的30倍 C.CO2的彌散系數(shù)相當(dāng)于O2的21倍 D.CO2的彌散系數(shù)相當(dāng)于O2的30倍 E.CO2與O2的彌散系數(shù)相等