A.560kPa B.637kPa C.700kPa D.800kPa
A.0.2m B.0.4m C.0.5m D.0.6m
A.96+50-40kPa B.98+50-20kPa C.343+50-40kPa D.170kPa±20kPa~270kPa±20kPa