Processing math: 100%
Question 18 Select one or more answer choices
收藏
笔记
反馈
我的笔记
5000
保存
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Which of the following equals its reciprocal?
Indicate all possible choices.

A.-2

B.-1

C.0

D.12

E.1

我的答案: