In each round, a set of random numbers will be displayed, and you need to enter the numbers you just saw after the screen is cleared.
The length of the numbers will increase with correct answers and decrease with incorrect ones.
You can press 'Exit' button at any time to quit and view the statistics. Press 'Start' buuton to begin...
每轮会显示一组随机数字，数字消失后，你需要输入刚才看到的数字。
随着正确答案的增加，数字的长度会增加；错误答案会减少数字的长度。
您随时可以摁 'Exit' 退出并查看统计数据。按Start开始...