单项选择题
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
A.190℃,0.35MpagB.205℃,0.4MpagC.220℃,0.45MpagD.280℃,0.7Mpag