简述应如何进行采购计划执行的监控？
《铁路客运运价里程表》中，接算站示意图中，接算站用（）圆圈表示。 ["黑色","红色","绿色","黄色"]
Refer to the exhibit. Router E learned about the PIM RP （designated as 7.7.7.7） from four different sources. Routers A and D advertised the 7.0.0.0 network via EIGRP. Routers B and C advertised the 7.0.0.0 network via OSPF. Considering that all four Ethernet interfaces on router E could potentially lead back to the PIM-RP， when router E receives the first multicast packet down the shared tree， which incoming interface will be used to successfully pass the RPF check？（） ["E0","E1","E2","E3","None of these interfaces will be used to successfully pass the RPF check","All of these interfaces would successfully pass the RPF check"]
加速原理
无机盐是存在于体内和食物中的矿物质营养素，细胞中大多数无机盐以（）形式存在。 ["质子","原子","离子","电子"]
经济发展
