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❓ 题目 According to the passage, what is the key difference between 'engineering resilience' and 'ecosystem resilience'?

A. Engineering resilience focuses on recovery speed, while ecosystem resilience focuses on the threshold for shifting to another state.
B. Engineering resilience applies only to human-made systems, while ecosystem resilience applies to natural systems.
C. Engineering resilience assumes multiple stable states, while ecosystem resilience assumes a single equilibrium.
D. Engineering resilience is outdated, while ecosystem resilience is the only valid concept today.

Engineering resilience focuses on recovery speed, while ecosystem resilience focuses on the threshold for shifting to another state.

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