下列各项业务应交的税金中，通过营业税金及附加账户核算的有（）。 ["汽车制造厂销售汽车时交纳的消费税","酒店根据营业额交纳的营业税","商业企业进口护肤品按规定缴纳的消费税","进口商品交纳的增值税","根据经营业务本期实际缴纳增值税计算缴纳的城市维护建设税"]
人为因素引起的火灾主要表现在（）。 ["用火不慎引起火灾","不安全吸烟引起火灾","人为纵火","机械撞击损坏线路导致漏电起火","使用电加热装置时，不慎放入高温时易爆物品导致爆炸起火"]
什么是保本点？进行保本分析的意义是什么？
残积矿床
Which two are characteristics of RSVP?（） [" RSVP itself provides bandwidth and delay guarantees."," For RSVP to be end-to-end, all devices must support RSVP."," RSVP reservations are maintained by a centralized reservations server."," An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations."]
简述商品不同于一般物品与产品的特征？
