一次事故涉及几个单位时应如何考核？
项目进展滞后，下列采取的措施不正确是（） ["在不增加资源前提下压缩工期","将活动间的逻辑关系改为互相搭接关系","系统内进行资源调整","在非关键路径上压缩工期"]
The construction portfolio may be included as part of the ship（）. ["general plans","operating manual","builders documentation","CCS file"]
The circular steel structure installed around the propeller of a towboat is the（）. ["nozzle","shroud","strut","hood"]
代理支库有下列情况之一的，即为年审不合格（）。 ["机构不健全、人员不到位、内部管理不严、制度不落实，存在风险隐患的","国库业务核算质量低，屡次发生差错又无改进措施或改进无成效的","对自身或辖区内乡（镇）国库和国库经收处发生的重大问题隐匿不报的","以上均是"]
由于同一原因而引起多次事故应如何考核？
