Create custom practice quizzes with Gemini 
使用双子座创建自定义练习测验 

What: Starting today, you can generate custom practice quizzes to help you prepare for an upcoming exam or simply increase your knowledge of any topic - big or small. Create quizzes based on documents you want to study, such as PDFs or class notes, or ask Gemini to create a quiz on a specific topic, and you’ll get a dynamic quiz experien...