填塞桥孔施工,桥梁的拆除在填土达到梁底()时进行。A.0.2~0.3m B.0

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问题 填塞桥孔施工,桥梁的拆除在填土达到梁底()时进行。A.0.2~0.3mB.0.3~O.4mC.0.4~O.5mD.0.5~0.6m

选项 A.0.2~0.3m
B.0.3~O.4m
C.0.4~O.5m
D.0.5~0.6m

答案 A

解析
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