Lesson 01 Redesign — Style Samples第 1 课改版 · 风格样张（待老师确认）· 大学英语（一）· 余军 Clark Yu

🎯 Two editions: the teacher projector edition (16:9, big type) and the student phone edition (portrait, swipe, tap to answer). Each sample page exists in both.
🔁 Try the "live" demo: open the projector and the phone edition in two tabs of the same browser — answers on the phone appear on the big screen, and the phone shows “Teacher is on page N” when you turn projector pages. Real classroom sync needs a server (later). All numbers are 示例数据 demo.