题库

当前位置 /首页/题库 > /列表

等于A.-3                        B.3                      ...

问题详情:

等于A.-3                        B.3                      ...

等于

A.-3                         B.3                                                        C.±3                                                 D.

【回答】

B

知识点:平方根

题型:选择题

TAG标签:等于 B. #