During the 1980s, unemployment and underemployment in some countries were as high as 90 percent. Some countries did not (1) enough food; basic needs in housing and clothing were not (2) . Many of these countries looked (3) the industrial processes of the developed nations (4) solutions. However, problems cannot always be (5) by copying the industrialized nations. Industry in the developed nations is (6) automated and very expensive.It provides (7) jobs than labor-intensive industrial processes, and highly (8) workers are needed to (9) and repair the equipment.These workers must be trained, (10) , many nations do not have the necessary (11) institutions. Thus, the (12) of importing industry becomes higher. Students must be sent abroad to (13) vocational (职业的) and professional training (14) , just to begin training, the students must learn English, French, German, or Japanese The students then (15) many years abroad, and (16) do not return home. All nations agree that science and technology should be (17) . The point is, countries (18) the industrial processes of the developed nations need to look carefully . (19) the costs, because many of these costs are hidden. Students from these nations should study the problems of the industrialized countries closely. With care, they will take home not the problems of science and technology, 20 the benefits.