【单选题】袋装砂井施工前应有防止砂袋扭结、缩颈、断裂和带起的措施。拔管时应防止带起砂袋当带出砂袋长度大于()时必须在旁边重新补打。
【判断题】袋装砂井施工拔管时应防止带起砂袋, 当带出的砂袋长度大于0.5m时,必须在旁边重新补打。
【简答题】B Fill in each blank with a given word or expression in their right form. go beyond, respond to, community, record urgent, movement , symbol , take part in 1. You should keep a __________ of your ...
【简答题】Fill in each blank with a given word or expression in their right form. go beyond respond to community record urgent movement symbol ...
【单选题】客运专线袋装砂井施工前应有防止砂袋扭结、缩颈、断裂和带起的措施。拔管时应防止带起砂袋,当带出砂袋长度大于()时,必须在旁边重新补打。
【单选题】客运专线袋装砂井施工前应有防止砂袋扭结、缩颈、断裂和带起的措施。拔管时应防止带起砂袋,当带出砂袋长度大于( B )时,必须在旁边重新补打。
【简答题】Fill in each blank with a given word or expression in their right form. go beyond respond to community record urgent movement ...