单项选择题
A.1.6Mpag,295℃B.1.5Mpag,285℃C.1.8Mpag,305℃D.1.6Mpag,305℃
A.0.7Mpag,170℃B.0.9Mpag,220℃C.0.75Mpag,175℃D.0.7Mpag,175℃
A.280℃,1.2MpagB.280℃,0.9MpagC.220℃,1.2MpagD.220℃,0.9Mpag