GRE Reading Comprehension: ETS-GRE阅读ETS - 6T3CKK5SH4XO1S227

The function of the passage as a whole is to A. criticize the motives and methods of those who practice gray marketing B. evaluate the effects of both channel flow diversion and parallel importation C. discuss the methods that have been used to regulate gray marketing and evaluate such methods' degrees of success D. describe a controversial marketing practice and evaluate several legal views regarding it E. discuss situations in which certain marketing practices are common and analyze the economic factors responsible for their development