陆上深层水泥搅拌桩桩体现场钻孔取样的取芯率应大于( )。A.80% B.85%

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问题 陆上深层水泥搅拌桩桩体现场钻孔取样的取芯率应大于( )。A.80% B.85% C.90% D.95%

选项 A.80% B.85% C.90% D.95%

答案 B

解析
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