The core of education reform is curriculum reform, which changes the tendency of attaching too much importance to knowledge transmission, emphasizes the formation of active learning attitude, changes the current situation of overemphasizing discipline-based, too many disciplines and lack of integration, reflects the balance, comprehensiveness and selectivity of curriculum structure, changes the curriculum's overemphasis on accepting learning and memorizing, advocates students' ability to actively participate, be willing to participate and diligently acquire new knowledge, changes the situation of over-centralized curriculum management, and enhances the adaptability of curriculum to places, schools and places. So choose C.