单项选择题

A.耐火隔热性≥1.OOh,耐火完整性≥1.OOh
B.只需耐火完整性≥1.50h
C.耐火隔热性≥1.50h,耐火完整性≥1.50h
D.耐火隔热性≥0.50h,耐火完整性≥1.50h