国务院（）年下发的文件，标志着我国新一轮“菜篮子”工程的开始。 ["2006","2008","2009","2010"]
必修课程的本质特点就是（），它是社会权威在课程中的体现。选修课程一般分为必选课程与任选课程两类。
隋朝时期，涿郡货物经水路运输抵长安须经路线是（）。 ["永济渠----黄河----广通渠","永济渠----通济渠----黄河","永济渠----通济渠----洛水","永济渠----沁水----广通渠"]
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"]
怎样理解设计活动中的招标？
简述应如何进行采购计划执行的监控？
