Da: liu xing, Nanjing, JS, Cina
paperback. Condizione: New. Paperback.Pub Date:2021-10-01 Pages:179 Language:Chinese Publisher:Hubei Science and Technology Publishing House's popular science work is an important undertaking that has merits and benefits for the future. In 1953. Comrade Mao Zedong said when he inspected the Purple Mountain Observatory of the Chinese Academy of Sciences: We must introduce more scientific knowledge to the masses. In 1988. Comrade Deng Xiaoping proposed that science and technology are productive forces. and scientific and . Codice articolo NX045368
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