科学
Richer people have an edge when it comes to getting national park permits
来源: Phys.org · 发布于
Many outdoor enthusiasts have spent hours in front of a computer, racing to reserve a campsite, backpacking permit or national park entrance ticket. A recent study suggests that the way these…
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- #park
- #enthusiasts
- #backpacking
- #computer
- #campsite
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