题干

已知关于x的一元二次方程:x2﹣(m﹣3)x﹣m=0.

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阅读下面古诗,完成小题。
                                                                                              枫桥夜泊    张继
                                                                                              月落乌啼霜满天,

                                                                                              江枫渔火对愁眠。

                                                                                              姑苏城外寒山寺,

                                                                                              夜半钟声到客船。
                                                                                           

                                                                                               次北固山下  王湾
                                                                                         客路青山外,行舟绿水前。

                                                                                         潮平两岸阔,风正一帆悬。
                                                                                         海日生残夜,江春入旧年。

                                                                                         乡书何处达,归雁洛阳边。