The Changjiang River ,known a______the Yangtze River,is the longest river in China and the t_____largest in the world.The Changjiang River originates as the Tuotuo River on the southwestern s________of the snow—draped Geladandong,the main peak of the Tanggula Mountains.It r_______through Qinghai,Tibet,Sichuan,Yunnan,Hubei,Hunan,Jiangxi,Anhui and Jiangsu and e_______the East China Sea at Shanghai .It h________a total length of 6300 kilometers and a catchment area of 1.8 million square kilometers.  The Three Gorges of the Changjiang River,known as a"nature art gallery"for their beautiful scenery,a_______a golden tourist waterway.  The three imposing forges-Qutang,Wuxia and Xiling Gorgesextend 193 kilometers,s______at Baidicheng(White King Town),Fengjie County,Hubei Provicine i______the east.