当年酒狂自负,谓东君、以春相付。流浪征骖北道,客樯南浦,幽恨无人晤语。赖明月曾知旧游处,好伴云来,还将梦去。回头下望人寰处,不见长安见尘雾。If productivity measures the efficiency of an economy, a measure of what an economic system produces is its gross national product (GNP), which is the current market value of all final goods and services that a nation produces within a particular period. |