單項(xiàng)選擇題城市燃?xì)廨斉涔艿赖膲毫Φ燃?jí)中,中壓燃?xì)夤艿缐毫?)。

A.0.8,0.4
B.0.2,0.005
C.P≤0.005(MPa)
D.0.005,0.45