单项选择题
A.1625℃ B.1635℃ C.1645℃
A.CO,H2 B.CO2,H2
A.蒸汽-重油-氧气-5%蒸汽 B.重油-蒸汽-氧气-5%蒸汽
A.5-15ppm B.15-30ppm
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