【摘 要】
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Canada is in Northern America and shares borders with(与……接壤)the United States of America.Canada and the USA share the longest international border in the w
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Canada is in Northern America and shares borders with(与……接壤)the United States of America.Canada and the USA share the longest international border in the world.It is 8,891km long.rnThe longest part of the border is shared with the US state of Alaska and is more than 2,475km long.
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