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方程的实根个数有个,方程的实根有个,则等于 ( ) A. 1 B. 2 C. ...

 方程6ec8aac122bd4f6e的实根个数有6ec8aac122bd4f6e个,方程6ec8aac122bd4f6e的实根有6ec8aac122bd4f6e个,则6ec8aac122bd4f6e等于

                                                               (   )

A.  1             B. 2            C.  3            D. 4

 

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