首页/ 题库 / [单选题]砼灌注桩按成孔方法可分为以下四类:①钻孔的答案

砼灌注桩按成孔方法可分为以下四类:①钻孔灌注桩;②沉管灌注桩;③人工挖孔灌注桩;④爆扩灌注桩。其中,属于挤土成孔的为()。

单选题
2022-03-07 16:17
A、①和②
B、③和④
C、①和③
D、②和④
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正确答案
D

试题解析

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