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Which of the following logically completes the reasoning in the passage? The Roman emperors issued coins made of silver-copper alloy. Over time the silver content in the alloy used for minting was reduced from an original 90% to less than 10%. The coins, however, continued to appear silver on the outside. It is therefore tempting to suspect that the silver surfaces were added to hide the reduction in silver content. However, that suspicion is probably groundless, since_________. A surviving late Roman coins that are much worn often do not appear silver at all. B the Roman emperors were increasingly unable to afford to maintain a high silver content in their coins. C in Roman times it would not have been possible to analyze the exact proportions of the metals in a coin once it had been minted. D most members of the public were probably unaware of what the coins looked the inside. E Roman metalworking methods of the time would have naturally resulted in a thin silver layer on the surface of any silver copper alloy.
Criminologists studying public perceptions of crime versus actual crimes reported by police found that, in countries worldwide, most people think violent crime accounts for a much larger percentage of the total crimes than it actually does. The criminologists hypothesize that these estimates are caused by media misrepresentations, noting that violent crime is depicted prominently in many countries' most popular media, like television shows and books, while other types of crime are underrepresented or not depicted at all. Which of the following would it be most useful to determine in evaluating the criminologists’ hypothesis? (A) Whether greater exposure to media correlates strongly with higher estimate by the public of the violent crime rate (B) Whether countries in which people watch more television also have higher violent crime rates than other countries do (C) Whether people in countries worldwide perceive violent crime differently when they read about it than when they see it on television (D) Whether certain television shows that prominently feature violent crime are available in more countries than they used to be (E) Whether media in countries worldwide misrepresent violent crime to the same degree
参考答案：EA
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发表于 2021-10-19 20:56:23
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