发展中国家的经济在自1961年(联合国定为联合国经济开发年)以来的二十年期间内,一直取得了比较顺利的进展。虽然它们在这段期间内遭迂到了两次石油危机的打击,但由于得到初级产品、工业制品出口贸易扩大的支持,因此除了一小部分农业生产衰退和处于战争状态的发展中国家之外,绝大多数发展中国家均取得了高于世界平均水 The economy of developing countries has made relatively good progress during the two decades since 1961 (the United Nations became the United Nations Year for Economic Development). Although they were beaten by two oil crises during this period, they were supported by the expansion of the export of primary products and industrial products. Therefore, in addition to a small number of developing countries in which agricultural production has declined and is in a state of war, The vast majority of developing countries have achieved higher than the world average water