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In how many of the ten years from 1965 through 1974 was the electrity use of Company T between 25,000 and 30,000 kilowatt-hours for at least one month?
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当前版本由 风泥雨咦莉吕鱼 更新于2018-05-10 14:21:11 感谢由 风泥雨咦莉吕鱼 对此题目的解答所做出的贡献。
4 个年份：1966,1969,1970,1973
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665122seq
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954696aed
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954696aed
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706147syqj
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我也觉得。。。。。。
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monthly data points，是每个月取一个点连起来，你仔细看横坐标两个Jan之间还有很多个小点，太坑了，我压根没注意看
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611935es
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太坑了吧！！！无语子呢
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[数学 ]【新版】冲分救命题 -12222
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[数学 ]【新版】冲分救命题 -12221
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[数学 ]【新版】冲分救命题 -12220
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[数学 ]【新版】冲分救命题 -12217
There are 5!, or 120,ways of arranging 5 different solid-colored flags side by side. If the colors of the flags are red, blue,yellow, green, and orange,how many of those arrangements have either the red flag or the blue flag in the middle position?
[数学 ]【新版】冲分救命题 -12216
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[数学 ]【新版】冲分救命题 -12212
Average Per-Pupil Expenditures for the I0 Percent of School Districts State X That Had the Highest Expenditures (Group H) Compared to the 10 Percent of School Districts That had the Lowest Expenditures (Group L)
[数学 ]【新版】冲分救命题 -12211
Average Per-Pupil Expenditures for the I0 Percent of School Districts State X That Had the Highest Expenditures (Group H) Compared to the 10 Percent of School Districts That had the Lowest Expenditures (Group L)For the 1986-87 school year, the ratio of the average per-pupil expenditures or the Group L districts to the average for the Group H districts was closest to
[数学 ]【新版】冲分救命题 -12210
Average Per-Pupil Expenditures for the I0 Percent of School Districts State X That Had the Highest Expenditures (Group H) Compared to the 10 Percent of School Districts That had the Lowest Expenditures (Group L) From the 1979-80 school year to the 1989-90 school year, the average per-pupil expenditures for the Group L school districts increased by approximately.
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[数学 ]【新版】冲分救命题 -12207
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[数学 ]【新版】冲分救命题 -12206
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[数学 ]【新版】冲分救命题 -12204
In 1990 approximately what percent of the total population of neighborhood was foreign-born with Europe as region of origin?
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A list of the names of the people of the entire 1990 foreign-born population in neighborhood was generated, with each person’s name appearing once. The names of 2 different people will be randomly selected from the list. Which of the following is closest to the probability that both names selected will be names of people whose region of origin was “Other”?
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