How to do nine maze problems in volume two of senior two math exercises?

1. After entering the maze, you can choose any road to go forward.

If you meet a dead end, go back immediately and make a mark at the intersection.

3. If you meet a fork in the road, observe whether there is a passage you didn't pass. If so, choose a channel to move forward; No, just follow the original road back to the original intersection and make a mark. In this way, the ninth maze problem in the second book of senior two mathematics exercises was completed.

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20 1 1 year yiwu mathematics test questions answer! Process! ! !