A.1kN/m2 B.2kN/m2 C.5kN/m2 D.10kN/m2
A.數(shù)值相等 B.數(shù)值不等 C.僅水平方向數(shù)值相等 D.鉛直方向數(shù)值最大
A.3kPa B.23.5kPa C.102.4kPa D.123.SkPa