问题 单项选择题

It each of the following fractions were written as a repeating decimal, which would have the longest sequence of different digits ?()

A.A

B.B

C.C

D.D

E.E

答案

参考答案:E

解析:

五个选项中的数都是无限循环小数,很明显的循环节只有一位;而的循环节有两位,他们分别以0.18和0.41循环;的循环节有三位,以0.612循环。

单项选择题 A3/A4型题
单项选择题