measure of economic progress is the gross national product . 30 , this totals the value of all goods and services produced and subtracts loss in value of factories and a half-century ago, GNP helped 31 a common way among countries of measuring change in economic some time, this seemed to work 32 well, but serious weaknesses are now indicated earlier, GNP includes loss in value of factories and equipment, but it does not 33 the loss of natural resources, including nonrenewable resources such as oil or renewable resources such as basic fault can produce a 34 sense of national economic to GNP, for example, countries that overcut forests actually do better than those that preserve their trees cut down are counted as income but no subtraction is made for 35 the forests.РРР 点击此处下载word完全版
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