Which of the following correctly describe characteristics of PPP?（） [" Encapsulates several different types of routing protocols."," Supports only IP."," Can be used over analog circuits."," Is proprietary to Cisco"," Supports error correction."]
党员受到开除党籍处分，（）内不得重新入党。 ["两年","三年","五年","十年"]
目前我国立法指导思想存在的问题主要表现为（）。
按照马克思的商品价值学说，产品成本是指（） ["C","C+V","C+V+M","V"]
目前，以汉语为母语和官方语言的国家有（）个。 ["1个","2个","3个","4个"]
什么是“三培两带两服务”？
