A.開(kāi):580kPa以下,關(guān):600±10kPa B.開(kāi):480kPa以下,關(guān):320±10kPa C.開(kāi):590kPa以下,關(guān):590±10kPa D.開(kāi):460kPa以下,關(guān):340±10kPa
A.開(kāi):780kPa以下,關(guān):600±10kPa B.開(kāi):880kPa以下,關(guān):560±10kPa C.開(kāi):710kPa以下,關(guān):590±10kPa D.開(kāi):690kPa以下,關(guān):580±10kPa
A.1 B.2 C.3 D.4