19. As early as 1919, $\qquad$ proposed the idea of constructing the Three Gorges Dam on the Yangtze River in the "Program for Building a Nation".
A. Huang Xing
B. Mao Zedong
C. Sun Yat-sen
D. Song Jiaoren
【Answer】 C
【Analysis】 The earliest proposal for the development of the Three Gorges was put forward by Sun Yat-sen, a pioneer of the Chinese bourgeois revolution. In 1919, he proposed in the "National Reconstruction Program" under the section on industrial plans to "build dams to control the water, allowing boats to navigate upstream and to harness the water power" in the Three Gorges section. In 1924, he also mentioned in his speech on "People's Livelihood" that 30 million horsepower generators could be installed in the Three Gorges. This idea has inspired several generations of Chinese people to manage and develop the Yangtze River.