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答案：
C
这题只要理
解了就很好作答，题目中说的简化只是说把那些复杂的表述简化为一个公式而已，并不是如何简化了算法。关键是那句the average (arithmetic mean) of 100 units of Country R's currency and 1 percent of one's annual income.“100 units of Country R's currency”就是说I国的100个货币单位，就理解为100元吧，求平均并不是把100个货币单位求平均而是将100元和1%I求平均，再与2%I相加即可，答案为C 
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