A.79.593MPa B.114.737MPa C.153.036MPa D.176.910MPa
A.約等于 B.并不等于 C.大于 D.遠(yuǎn)大于
A.62.348(m/h) B.75.677(m/h) C.76.470(m/h) D.77.850(m/h)