2. 自考
  3. Following football hero O. J. Simpson’s arrest in June, 1994, for the murder of his ex-wife and one of her friends, Newsweek and

Following football hero O. J. Simpson’s arrest in June, 1994, for the murder of his ex-wife and one of her friends, Newsweek and

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问题     Following football hero O. J. Simpson’s arrest in June, 1994, for the murder of his ex-wife and one of her friends, Newsweek and Time magazines ran the same police mug shot of Simpson on their covers. Newsweek’s version was a straight reproduction. Time electronically manipulated the photo to darken it and achieve a gloomy and threatening look that emphasized Simpson’s unshaven cheeks and African-American skin color. The alteration offended many readers and raised an increasingly familiar question; In an age of computer-controlled images, can anyone still trust a photograph?
    Altering a digitized image(数码技术相片) , as Time did for its cover, has been one of the fastest-growing, most far-reaching, and most controversial(有争议的) techniques in contemporary photography. With this method a photograph is scanned(扫描) , digitized (converted into a set of numeric values) , and entered into a computer from which the operator can control the image almost in any way imaginable; add, delete, or change the position of visual elements; modify tones and colors; create montages; combine photographs; and even create entirely imaginary scenes. The digitized image can be stored in a data base, output as a print(底片) or transparency(透明胶片) , or converted for video-screen display.
    Electronic image manipulation arrived in force in the 1980s with a new type of computers that cost on the order of $500, 000 or more and occupied an entire room. More compact and far less expensive desktop systems soon appeared, capable of, at least, limited image control and available at chain-store prices.
    The ever-rising flood of digitized visual information may not, as some critics fear, fatally destroy the certainty of photographic evidence. Yet many observers agree that both suppliers and consumers of photographic information must exercise greater care than before to tell fact from falsehood in the images they use.
Nowadays, electronic image alterations are________.
选项 A、unbearably expensive
B、more expensive in the States
C、only available in chain stores
D、far less expensive than before
答案D
解析 细节理解题。由第三段最后一句可知答案为D。
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