AMC 8 1992 Problem 15

AMC8 1992 年第 15

余数与同余★★★☆☆
Problem What is the 1992-nd letter in this sequence?
\textABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC\textABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC\cdots
此序列中的第 1992 个字母是什么? \textABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC\textABCDEDCBAABCDEDCBAABCDEDCBAABCDEDC\cdots
AMC 8 1992 Problem 15 figure
  1. A.A\text{A}
  2. B.B\text{B}
  3. C.C\text{C}
  4. D.D\text{D}
  5. E.E\text{E}

正确答案 · Correct Answer

C

解析 · Solution

解析整理中

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