一、国外几个典型欠发达地区开发的基本背景 1.美国西部开发。在美国历史上“西部”是一个很不确定的概念。它最初是指从阿巴拉契亚山到密西西比河之间的地带,也就是习惯上常说的“旧西部”;后随着美国领土向西的扩张,又把密西西比河到落基山脉之间的地带称之为“新西部”;到19世纪末,美国领土进一步越过落基山脉向西扩展到太平洋沿岸,因此把落基山脉到太平洋 First, several typical underdeveloped areas in the development of the basic background 1. The development of the western United States. In the history of the United States, “the west” is a very uncertain concept. It originally referred to the area between the Appalachians and the Mississippi, the so-called “old west,” as it is customary; with the westward expansion of the United States territories, the Mississippi to the Rockies The area between the two is called “the new west.” By the late 1800s, the United States territories further extended westward across the Rockies to the Pacific Rim, thus moving the Rocky Mountains to the Pacific