| It uses the smallest amount of radiation, less than that obtained when flying transcontinentally. |
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| Did it spread here gradually in pre-columbian times from from the Southeast or transcontinentally from the Southwest? |
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| So we must think transcontinentally as well as continentally. |
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| This has fostered an environment in which information, which is the only product actually created on the Internet, is transcontinentally transportable. |
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| As I was flying transcontinentally I was working on a manuscript. |
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