第2个回答 2015-05-21
美国和加拿大的共有边界线为世界最长,共有8891公里,其中包括在阿拉斯加2475公里的分界线。
The Canada–United States border, officially known as the International Boundary, is the longest international border in the world, shared between Canada and the United States of America, the second and fourth largest countries by area respectively. The terrestrial boundary (including small portions of maritime boundaries on the Atlantic, Pacific, and Arctic coasts, as well as the Great Lakes) is 8,891 kilometres (5,525 mi) long, including 2,475 kilometres (1,538 mi) shared with Alaska.