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

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

游客2025-02-24  19
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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