已知:
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a05abe913bad92058af808736c17480b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.5 | B.﹣5 | C.5或﹣5 | D.1或﹣1 |
更新时间:2022-11-09 20:16:57
|
A.5 | B.﹣5 | C.5或﹣5 | D.1或﹣1 |