采用导管法施工钻孔灌注桩混凝土时 首批混凝土的埋管深度不得小于1.0m。混凝土浇筑过程中 埋管 采用导管法施工钻孔灌注桩混凝土时,首批混凝土的埋管深度不得小于1 0m。混凝土浇筑过程中,埋管深度宜为2 0~6 0m。() 答案解析
产业链条分析需要考虑()。A 产业中企业数量B 产业平均利润率C 产业集中度D 产业成功关键因素 产业链条分析需要考虑()。A、产业中企业数量B、产业平均利润率C、产业集中度D、产业成功关键因素 答案解析
灌注桩钻孔施工 遇到塌孔时 应采取哪些措施?()A.当塌孔不严重时 回填至塌孔位置以上 采取改善 灌注桩钻孔施工,遇到塌孔时,应采取哪些措施?()A 当塌孔不严重时,回填至塌孔位置以上,采取改善泥浆性能、加高水头、重钻等措施B 护筒底口塌孔,采取 答案解析
Perhaps the most ________ aspect of this computer is that it is so easy to use.A str Perhaps the most ________ aspect of this computer is that it is so easy to use A strikingB impressingC dividingD absorbing 答案解析
柱子试验中铰支座是重要的试验设备 试回答下列哪种铰支应比较可靠灵活? ()A. 刀口铰支座 B. 柱子试验中铰支座是重要的试验设备,试回答下列哪种铰支应比较可靠灵活? ()A 刀口铰支座B 半球形铰支座C 可动铰支座D 圆球形铰支座 答案解析
从事国际货物运输代理业务的小规模纳税人开具的普通发票第四联用作()。A.购付汇联B.抵扣联C.报 从事国际货物运输代理业务的小规模纳税人开具的普通发票第四联用作()。A 购付汇联B 抵扣联C 报销联D 记账联 答案解析
It is advisable that he ________ a seat in the train to Beijing.A may reserveB ought to It is advisable that he ________ a seat in the train to Beijing A may reserveB ought to reserveC reserveD must reserve 答案解析
Many schools place weight ________ analytical study.A toB withC atD on Many schools place weight ________ analytical study A toB withC atD on 答案解析