【简答题】Department Store Magic For most of the 20th century Smithson's was one of Britain's most successful department stores, but by the mid-1990s, it had become dull. Still profitable, thanks largely to a s...
【判断题】Wassily Leontief's theory of the product life-cycle was based on the observation that for most of the 20th century, a very large proportion of the world's new products were developed by foreign nation...
【单选题】Vernon found that for most of the 20th century, a very large proportion of the world's new products had been developed by U.S. firms and sold first in the _____ market.