单项选择题
A.1.2MB.1.5MC.2MD.3M
A.0.6M B.0.9M C.1.2M D.1.8M
A.8MM B.10MM C.12MM D.15MM
A.断桩 B.吊脚桩 C.缩径桩 D.桩尖进水
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