單項(xiàng)選擇題通行地溝與半通行地溝的凈高與通道寬度尺寸分別應(yīng)不小于()m。

A.2.0,1.0;1.6,0.7~1
B.1.9,0.9;1.5,0.6~0.9
C.1.7,0.8;1.3,0.5~0.6
D.1.8,0.7;1.4,0.5~0.7