排水不良造成地基土扰动时，扰动深度在（）mm以内，宜填天然级配砂石或砂砾处理；扰动深度在300mm以内，但下部坚硬时，宜填卵石或块石，再用砾石填充空隙并找平表面。 ["100","150","200","250"]
（）主要指利用计算机网络等现代信息技术，对运输计划、运输工具、运送人员及运输过程的跟踪、调度指挥等业务进行有效管理的人机系统。 ["仓储管理系统","运输管理系统","配送信息管理系统","供应链管理信息系统"]
对喷油泵供油量不均匀度的要求是（）。 ["怠速和额定均不大于3%","怠速和额定均不大于30%","怠速不大于30%","额定不大于30%"]
透支取现交易不享受免息还款期待遇，并按（）的日利率计算利息。 ["千分之5","千分之3","万分之5","万分之3"]
What is true if you want to switch undo tablespaces from the current one， called UNDO1， to a new one called UNDO2？（） ["It is NOT possible to switch unless no active transaction exist in UNDO1. ","It is possible to switch to UNDO2； but current active transactions will abort. ","It is possible to switch to UNDO2； current active transactions will be automatically migrated to UNDO2. ","It is possible to switch to UNDO2； only current active transactions will continue to execute inside UNDO1."]
毒物
