Long press. On the onion academy APP, open the test paper to be downloaded, press and hold the test paper, and then download it. Onion College (formerly Onion Mathematics) was founded by Yang, who graduated from Harvard University, Zhu Ruochen, who graduated from Duke University, and Li Nuo, a former innovation works "dim sum OS" technical executive, at the end of 20 13. It mainly focuses on Internet inclusive education in primary and secondary schools, and provides personalized education services for teachers and students with the innovative teaching mode of 100% human-computer interactive learning and the adaptive learning experience of high-quality video courses.