*121.Passage 1 The 2025 (6th) China Internet Basic Resources Conference (CIBRC) was held in Beijing on the 18th. At the conference, the China Internet Network Information Center (CNNIC) released the "Generative AI Application Development Report (2025)". The report shows that as of June 2025, the user base of generative artificial intelligence in China reached 515 million, an increase of 266 million compared to December 2024, with the user scale doubling in six months. The penetration rate reached 36.5%. The report suggests that generative AI is gradually integrating into the daily lives of various groups in China, with young, middle-aged, and highly educated users forming the core group. Among all generative AI users, 74.6% are under the age of 40, and 37.5% have a college degree (specialized or bachelor's) or higher. Generative AI is widely used in various scenarios and is also being actively explored and practiced in fields such as agricultural production, industrial manufacturing, and scientific research. "In terms of application scenarios for generative AI users, the main applications include answering questions, daily office work, leisure and entertainment, and content creation. Among these, using generative AI products to answer questions is the most widespread, accounting for 80.9% of users," said Zhang Xiao, Deputy Director of CNNIC. The report points out that with the continuous optimization of the technological environment, China's influence in the global artificial intelligence technology field continues to strengthen, and it has become an important force driving global AI innovation. As of April 2025, China's AI patent applications reached 1.576 million, accounting for 38.58% of the global total, ranking first in the world. "Artificial intelligence technology is no longer just a concept in a laboratory; it has formed a mature service system capable of stably supporting hundreds of millions of users and accurately responding to diverse needs," said Liu Yulin, Director and Party Secretary of CNNIC. He believes that the explosive growth of the generative AI user base reflects a trend in China where AI is moving from "usable" to "easy to use" and from "trial use" to "regular use". Liu Yulin stated that with the dual maturity of technical capabilities and service capabilities, China's AI industry has a solid foundation for large-scale application and implementation, and will accelerate its advancement into a new stage of "deep practicality." At the same time, the dividends of AI technology will also shift from being "exclusive to the few" to "shared by the many," becoming a new force for promoting inclusive social development. According to the report released by CNNIC, what was the user base of generative AI in China as of June 2025()?