Test analysis: This question examines the Great Leap Forward. The picture on the left, "The yield of rice per mu is more than 30,000 kilograms", reflects the prevalence of exaggeration during the Great Leap Forward period, and the report is untrue; During the "Great Leap Forward" period, the slogan of "taking steel as the key link and making an all-round leap forward" was put forward. The scene of residents on the right sending iron tools to steelmaking is real. So choose a.

Comments: The Great Leap Forward movement called for the development of industry and agriculture. Industry will catch up with the Premier League in a few years; Agriculture "how bold people are, how high the land will be." It reflects that the broad masses of people are eager to change the backward situation of China's economy, but ignore the objective economic laws, resulting in serious difficulties in the national economy.