Flash Quiz Lịch Sử by Nguyen

Sau mỗi khoảng thời gian, hiển thị 1 câu hỏi lịch sử ngắn với độ khó tăng dần.

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About this extension

Flash History Quiz: After a set period of time (e.g., 1 hour), a short history question will appear. The question changes daily and the difficulty level increases gradually.

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