Join一 科学与技术 upcoming events being held in Mariano Roque Alonso. Mariano Roque Alonso is a city located in Paraguay, in the Central Department, known for its annual Expo, one of the most important trade fairs in South America, which showcases a wide range of products and services, including agriculture, livestock, industry, and technology, attracting thousands of visitors and exhibitors from all over the world.
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