题目内容
下面各题,能简算的要简算
3-
1-(
)
答案:
解析:
解析:
|
3- =3- =2 = = 1-( =1-( = |
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题目内容
下面各题,能简算的要简算
3-
1-(
)
|
3- =3- =2 = = 1-( =1-( = |