【正文】
was your school built? 3 Which is the longest river in China? How long is it? Chang Jiang (Yangtze). It is 6,378 kilometres long. 4 Which mountain is the highest in the world? How high is it? Mount Qomolangma. It is about 8,844 metres high. 5 When was Nanpu Bridge built? How long did it take to finish the bridge? In 1991. About three years. 6 What is the population of China now? What was it in 1949