单选题放坡开挖的基坑，基坑平面尺寸应按基础大小海边加宽（ ），基础如有凹角，基坑仍应取直。A0.2～0.4mB0.2～0.5mC0.3～0.5mD0.3～0.6m
单选题
放坡开挖的基坑，基坑平面尺寸应按基础大小海边加宽（ ），基础如有凹角，基坑仍应取直。
A
0.2～0.4m
B
0.2～0.5m
C
0.3～0.5m
D
0.3～0.6m
参考解析
解析：
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