危险作业现场应有(),并有专人监护。 ["A.安全标志","B.禁止标志","C.警示标志","D.明显标志"]
空气采样时应在空气中暴露() ["15min","25min","5min","1mi"]
下列现金流入与流出的何种差别,成为制约资金占用水平的因素() ["时间上","数量上","静态","成本上"]
可以终止无脉搏性尖端扭转型室速的药物是() ["利多卡因","硫酸镁","胺碘酮","肾上腺素"]
企业制定数量标准的部门主要是() ["生产部门","会计部门","采购部门","技术部门"]
危险作业申请单除须经相关主管部门审查外,应视()分级审批。