中央办公厅印发《关于培育和践行社会主义核心价值观的意见》，将24字核心价值观分成3个层面，其中属于国家层面的价值目标的是（  ） 

    All China's major cities have good transport____(network). There are the tour buses, mini buses, taxis, as well as public buses,

    Buses in Chinese towns are always____(crowd). The fare depends on distance, and is payable to the____(conduct) of buses.

    A taxi is often ____most convenient means of travel in the City. They are available at airports, railway stations and hotels and even in urban areas. The total fare depends on the starting meter price____can range from 5 to 12 yuan, and the distance. Extra fees____(charge) for waiting and low speed driving during traffic jams. If you take a taxi after 11 pm, a 20 percent surcharge applies over the basic fare.

    The minibus is a compromise between the____ (relative) expensive taxis and full public transport. Their charge is a little more than that of the bus, about 2 yuan or more____ (depend) on distance, but it is very convenient, because it can stop____ any point you want along the route.

    Tour buses, normally ____ (equip) with air conditioning and TV, are managed by travel agencies, hotels and airports and provided for short tours, A tour guide is usually present on such buses.

如图所示，其中甲、乙、丙、丁、戊分别是氧化铜、稀盐酸、氢氧化钙溶液、碳酸钠溶液、二氧化碳中的一种。图中相连的两圆表示相应物质能发生反应，已知甲和丁反应有气泡出现。则下列说法正确的是（  ）