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https://physics.stackexchange.com/questions/94888/why-are-continents-wider-at-the-north-and-tapering-towards-the-south
您即将离开知乎,请注意您的帐号和财产安全。
https://physics.stackexchange.com/questions/94888/why-are-continents-wider-at-the-north-and-tapering-towards-the-south