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問prep2 98
98.
The violent crime rate (number of violent crimes per 1,000 residents) in Meadowbrook is 60 percent higher now than it was four years ago. The corresponding increase for Parkdale is only 10 percent. These figures support the conclusion that residents of Meadowbrook are more likely to become victims of violent crime than are residents of Parkdale.
The argument above is flawed because it fails to take into account
A. changes in the population density of both Parkdale and Meadowbrook over the past four years
B. how the rate of population growth in Meadowbrook over the past four years compares to the corresponding rate for Parkdale
C. the ratio of violent to nonviolent crimes committed during the past four years in Meadowbrook and Parkdale
D. the violent crime rates in Meadowbrook and Parkdale four years ago
D我明白爲什麽對,但是A爲什麽不對?
如果P增加了10%,M增加了60%而同時M的人口基數增大的量比P要大很多呢?
哎?看完好像有點明白了...人口密度和人口基數好像是兩回事。
如果這題A改成“人口數量”,我覺得A就也說得通了吧?
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