生产经营单位的（）负有组织制定并实施单位的生产安全事故应急救援预案的职责。 ["主要负责人","安全管理人员","特种作业人员"] According to the following statement， can you tell me which term is described？（） It is the air return for an air conditioned system. In most buildings， the area above a drop ceiling orunder a raised floor is used as the air return （source of air） for the air conditioning. Those drop ceiling and raised floors are also where wire is often installed. If wire and cable is installed in a dropceiling or raised floor， it is out of sight. If that cable were burning， it would give off toxic fumes.These would be fed to the rest of the building by the air conditioner. As a result， people could beinjured even though they are a long way from the fire. ["DAS area","plenum area","extended area","RF special area"] 换土填层的作用有（） ["提高地基承载力","减小地基沉降量","加速软土的排水固结","以上皆是"] Cisco Small Business products address which installation requirement more effectively than standard Cisco products?（） [" wireless technology integration"," use of advanced reporting functions"," VPN technology integration"," minimal technical complexity"] 油量调节机构固定在标定功率循环供油量位置时，发动机的有效功率、有效扭矩以及燃料消耗率随发机动转速变化的关系称为柴油发动机的（）。 ["外特性","内特性","速度特性","负荷特性"] 在同事中构建小团体可以避免自己陷于孤立，是对自己有利的做法。（）