單項(xiàng)選擇題一般性硬黏土的臨時(shí)性挖方邊坡值(高:寬)為()

A.1:1.25~1:1.50
B.1:0.50~1:1.00
C.1:0.75~1:1.00
D.1:1.00~1:1.25