Should shoulder the heavy responsibility of history and give meritorious service to the new scientific and technological revolution

On May 23, 1991, the Fourth National Congress of the China Association for Science and Technology was grandly opened in the Great Hall of the People in Beijing. Party and state leaders Jiang Zemin, Li Peng, Qiao Shi, Song Ping and Li Ruihuan attended the opening ceremony. In the warm applause, General Secretary Jiang Zemin delivered an important speech. First of all, on behalf of the CPC Central Committee and the State Council, he expressed cordial condolences to the vast number of scientific and technological workers who worked hard on all fronts of the country.

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