A.3 B.6 C.8 D.12
A.Ms點(diǎn)升高,Mr點(diǎn)降低 B.Ms點(diǎn)降低,Mr點(diǎn)升高 C.Ms和Mr點(diǎn)升高 D.Ms和Mr點(diǎn)降低
A.氧化 B.過熱 C.脫碳