村级重大事务决策“四议两公开”指什么？
工程造价指数包括的内容有（） ["各种单项价格指数","设备、工器具价格指数","建筑安装工程造价指数","投标报价指数","建设项目或单项工程造价指数"]
押运行李、包裹的押运人可以不用购买车票。
Which one of the WAN data-link protocols below is used for out-of-band signaling?（） [" HDLC"," NCP"," PAP"," LAPD"," LAPB"," None of the above"]
下列属于三次文献的是（）。 ["综述","手稿","索引","手册"]
村民自治的核心内容是什么？
