若
,则下列不等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-09-08 11:29:06
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【推荐2】已知实数a,b,c满足
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11204b37e8469d54c8cad64f92a05aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f591d7a47c5bc4cfbe77d234074f40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f179dd06b848fc910734610a6f72e01d.png)
A.3 | B.4 | C.6 | D.8 |
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