Reaction speed test
Fav1. Sau khi nhấp vào nút "Bắt đầu", hãy chú ý đến sự thay đổi màu sắc trong ô vuông.
2. Ngay khi màu sắc trong ô vuông chuyển từ màu trắng sang màu khác, hãy nhấp vào nút "Dừng".
3. Sau khi nhấp vào nút "Dừng", thời gian phản ứng của bạn sẽ được hiển thị.
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