test tube
We will certainly storm the fortress of science (1955, July)
Popularize science to bring about a technological revolution (1959, October)
Scientific farming strives for high yields (1979, July)
Study hard improve every day (1979, September)
Study hard for the Four Modernizations (1980, September)
Intellectual development (1987, November)
How to prevent and control contagious SARS (2003, April)
