孝敬父母长辈，从道德的角度讲，是因为（   ）
①孝敬父母长辈是传统美德                              ②“孝”是一个人立身处世最基本的道德规范
③赡养父母是公民必须履行的法定义务          ④孝敬父母是社会主义道德规范的重要组成部分 

漫画《整个楼的意见箱都包给你了！》给我们的启示是 (　　)  

阅读下表，下列选项中对表格内容分析正确的是（   ）

苏联前两个五年计划期间经济发展情况表（各项指标排名情况）

 

读图，完成下面问题，图中①表示的基本地形类型是（    ）

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    That Beijing together with Zhangjiakou succeeded in getting the chance ____(host) the 2022 Winter Olympic Games, speeds up the development of Zhangjiakou City. Word came____the Beijing -- Zhangjiakou high-speed railway ,____ (locate) in North China, is currently under construction and ____(expect) to be completed by 2020 in preparation for the cities to host the 2022 Winter Olympics.
    ____, the project is a big challenge line, with ten stations situated along its route, starting from Beijing North Railway Station, heading west through the Great Wall, three times the____(long)of the capital's territory. Having a ____(totally) investment of 31.17 billion yuan , the trip between the two cities will only take 40 minutes, with the train____(travel) at an average of 250km/h. According to the plan, the high-speed railway will build two branch lines-- one is to Yanqing Station and____other to Taizicheng of Chongli,____the Olympic village lies. The full railway, which includes 72–kolometers section through Beijing , will be completed in four and a half years.