图4-15是某地区水系和铁路分布图, 6.该地区铁路线分布的共同特点是基本上( ) A.沿山谷延伸 B.沿山脊延伸 C.沿等高线延伸 D.沿经纬线延伸 7.形成该地地表形态的主要原因是 ( ) A.流水搬运作用 B.流水侵蚀作用 C .风力堆积作用 D.流水堆积作用
It has always been the _____ of our goverment to encourage graduates to start their business.
The most important _____ of his speech at the G20 summit was that we should all unite to fight against the finanical.
He directed exposure to pigs,otherwise he_______pig flu.
In no time _______ me if he had any further information for pig flu..
These plastic flowers look so _____ that many people think they are real,____they sell badly for the finanical crisis.