A.NONE B.LESS C.SOMETHING D.OTHER THAN E.NOTHING F.AS WELL AS
A.韌性破裂 B.疲勞破裂 C.應(yīng)力腐蝕破裂 D.蠕變破裂
A.硝化反應(yīng) B.磺化反應(yīng) C.氧化反應(yīng) D.聚合反應(yīng)