挑战习题
1/5单选题
难度:

1.

当x=-5时,代数式的值是3,求当x=5时,代数式的值为( )


A

3

B

4

C

5

D

6

提示1:
PFA+5pW05L2T5oCd5oOz77yM5LiA5a+555u45Y+N5pWw55qE55u45ZCM5YG25pWw5qyh5bmC55qE57uT5p6c55u45ZCMPC9QPg==
正确答案:QQ==
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