Nodes 0, 1, and 2 form a cycle. If we remove 0 - 1, the graph remains connected. However, removing 1 - 3 disconnects nodes 3 and 4 from the rest of the graph.
Flexible-needle percutaneous puncture is a widely used medical technique in clinical practice and is known for its advantages of minimal patient, fast recovery, and ease of operation. However, ...
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