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为了方便广大考生更好的复习，综合整理了备考资料：GMAT优秀作文精选，以供各位考生考试复习参考,希望对考生复习有所帮助。 The author concludes that photographers who work in color hold a competitive advantage over those who work in black-and-white. To support this conclusion, the author claims that the greater realism of color accounts for its predominant use in magazines and portraits. The author also points Out that newspapers now use color photographs, and that there are more types of color film than black-and-white film available today. This argument is problematic in several important respects. First, the argument unfairly assumes that working in color is necessary in order to gain an advantage. The author identifies only two areasmagazine and portrait photographywhere color predominates. It is possible that the overalldemand for black-and-white photography remains high. Moreover, the author provides no evidence that the realism of color photography is the reason for its predominance. The predominant use of color may be due to other factorssuch as consumer preferences or relative costs of filmwhich might change at any time. Second, the argument unfairly assumes that a photographer must make an either/or choice between the two types of photography. This assumption presents a false dilemma, since the two media are not necessarily mutually exclusive alternatives. Common sense tells us that a photographer can succeed by working in both media. | 
