科学与环境

Chiricahua is the nation's newest national park—what does that mean?

来源: Phys.org - latest science and technology news stories · 发布于

Chiricahua is the nation's newest national park—what does that mean?
来源: Phys.org - latest science and technology news stories

With a stroke of a pen, President Donald Trump has officially created the United States' 64th national park.

With a stroke of a pen, President Donald Trump has officially created the United States' 64th national park.

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