加筋土挡土墙的高度在Ⅰ级干线上不宜大于()。A.4m B.9m C.10m

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问题 加筋土挡土墙的高度在Ⅰ级干线上不宜大于()。A.4mB.9mC.10mD.11m

选项 A.4m
B.9m
C.10m
D.11m

答案 C

解析
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