The more conservative your work place is, （）it is, in fact, to do this. ["the risky","the more risky","the riskier","the more riskier"]
直埋光缆与易燃和可燃品的堆场、储罐、库房或生产车间最小隔距为（）。 ["10米","20米","35米","40米"]
公安机关经审查，认为案件违法事实不清、证据不足的，可以在受案后（）内书面告知案件移送部门补充移送相关证。 ["3日","4日","5日","6日"]
直埋光缆与树木平行隔距不小于（）米。 ["0.3米","0.5米","0.75米","1米"]
铜、铁水包液面应低于包沿50mm以下，运行中（）米之内不许停人。 ["6","8","10"]
简述CRH2A型动车组重联联挂的操作规定。
