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【单选题】
强夯置换施工可按下列施工步骤正确顺序是()1清理并平整场地 2标出夯点位置并测量场地高程 3起重机就位,夯锤置于夯点位置 4测量夯前顶高程 5夯击并逐击记录夯坑深度 6按由内而外,隔行跳打原则完成全部夯点的施工 7铺设垫层并分层碾压密实A.
①②④③⑥⑤⑦
B.
①②③④⑤⑥⑦
C.
②①④③⑤⑥⑦
D.
②①③④⑥⑤⑦
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