2. 外语
  3. f(t)=kt for all t, where k is a constant, and f(3)=1/2 Column A Column B k f(1)

f(t)=kt for all t, where k is a constant, and f(3)=1/2 Column A Column B k f(1)

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问题 f(t)=kt for all t, where k is a constant, and f(3)=1/2

Column A                     Column B
k                            f(1)
选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案C
解析 对所有t有f(t)=kt，其中k是常数，且f(3)=1/2
解：本题的正确答案为(C)。此题只须将t=1代入f(t)表达式：f(1)=k×1=k
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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