加拿大是一个地广人稀的国家。国土面积997.6万平方公里,居世界第二,人口仅2700万。虽然领土大于美国,但由于人口密度低、特殊地理位置、现有的社会文化基础等原因,决定了其经济发展对国外的依赖程度高于美国。1990年,加拿大进出口额占国内生产总值的比重分别是26%和28.1%,而美国则分别 Canada is a sparsely populated country. Land area of ​​9976000 square kilometers, ranking second in the world, population of only 27000000. Although its territory is larger than that of the United States, its economic development depends more on foreign countries than the United States because of its low population density, special geographical location and existing social and cultural foundation. In 1990, the share of Canada’s imports and exports in its GDP was 26% and 28.1% respectively, while that of the United States