The yangtze river flows through Shanghai, Nanjing, Wuhan and Chong qing. The source of the river are the Tanggula mountains and the mouth is shanghai and jiangsu
Yangtze River.
Only one, China. It used to be two, with Tibet being the other country.
Two great rivers run through China Proper: the Yellow River in the north, and the Yangtze (or Yangzi ) River to the south.
The Black River is in the United States, it runs through no other countries.
Canada
Russia
Venezuela
Romania.
SPAIN !
China.
India and Bangladesh