7. 某条形基础底面宽度b = 1.4m,作用于基底的平均附加压力p0= 200kPa,要求确定均布条形荷载中点o下z等于0 ,0.7,1.4,2.1,2.8,4.2,5.6(m)时的地基附加应力σz分布( )
A. z等于0 ,0.7,1.4,2.1,2.8,4.2,5.6(m),σz等于220,164,110,80,62,42,32(kpa)
B. z等于0 ,0.7,1.4,2.1,2.8,4.2,5.6(m),σz等于200,164,110,90,62,42,32(kpa)
C. z等于0 ,0.7,1.4,2.1,2.8,4.2,5.6(m),σz等于200,164,110,80,62,42,32(kpa)
D. z等于0 ,0.7,1.4,2.1,2.8,4.2,5.6(m),σz等于200,164,110,80,72,42
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