阅读下面这首唐诗，完成后面小题。

                                                                                          题乌江亭

                                                                                            杜牧

                                                                       胜败兵家事不期，包羞忍耻是男儿。

                                                                       江东子弟多才俊，卷土重来未可知。

    【注释】乌江亭：在令安徽省和县东北的乌江浦，相传为西楚霸王项羽自刎之处。