【14】As shown in the figure, the line segments represent the paths for pedestrians in the garden. The garden workers need to water the flowers and plants in the garden. If they need to walk through every path without repetition, they should enter from ( ) and exit from ( ).

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【Key Point】Eulerian path.
【Analysis】A connected graph with odd vertices can be drawn in one stroke if it requires an odd vertex to enter and an odd vertex to exit, so the entry and exit points are $\mathrm{A}, \mathrm{G}$

【Answer】A, G