单项选择题
A.0~200.0B.0~50.0C.0~100.0D.0~1000.0
A.0~1.00B.0~3.00C.0~4.00D.0~2.00
A.0.56~0.57MPaB.0.66~0.77MPaC.0.56~0.87MPaD.0.56~0.77MPa