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题库 / OG2015-CR-32
Last year the rate of inflation was 1.2 percent, but for the current year it has been 4 percent. We can conclude that inflation is on an upward trend and the rate will be still higher next year.
Which of the following, if true, most seriously weakens the conclusion above?
The inflation figures were computed on the basis of a representative sample of economic data rather than all of the available data.
Last year a dip in oil prices brought inflation temporarily below its recent stable annual level of 4 percent.
Increases in the pay of some workers are tied to the level of inflation, and at an inflation rate of 4 percent or above, these pay raises constitute a force causing further inflation.
The 1.2 percent rate of inflation last year represented a 10-year low.
Government intervention cannot affect the rate of inflation to any significant degree.
B：因为有一个涨幅的趋势存在，所以只有这个趋势是存在的，就能下该结论。因此只有否定了这个涨幅趋势的存在，题目的结论才能被削弱。 B 说明了去年的低点是有特殊原因的，若没有那个特殊原因应该是和今年一样的inflation rate， 所以一般情况下去年和今年的inflation rate都是一样的，所以明年也应该是保持稳定的而不是上涨。
A 倾向使用有代表性的数字 加强
B 正确，只有去年低，明年也不会再高了
C 增长工资会引入进一步通货膨胀，无关
D 只说了去年低
E 政府不能影响通货膨胀，无关