A.無(wú)反應(yīng),無(wú)反應(yīng) B.被腐蝕,無(wú)反應(yīng) C.無(wú)反應(yīng),被腐蝕 D.被腐蝕,被腐蝕
A.1.45 B.1.55 C.1.65 D.1.75
A.1.10 B.1.17 C.1.29 D.1.35