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Ⅲ .七選五 16 When a starving man gets a meal, he begins to think about an overcoat。 when an executive gets a new sports car, visions of country clubs and pleasure beats dance into view. The many wants of mankind might be regarded as making up several levels. 17 . The first and most basic level of wants involves food. Once this want is satisfied, a second level of wants appears: clothing and some sort of shelter. By the end of World War II these wants were satisfied for a great majority of Americans. 18 It included such items as automobiles and new houses. By 1957 or 1958 this third level of wants was fairly well satisfied. Then, in the late 1950s a fourth level of wants appeared: the “l(fā)ifeenriching” level. While the other levels involve physical satisfaction- the feed