阅读下面这首古诗，完成后面题目。
                                                                                            寄黄几复①
                                                                                             宋·黄庭坚
                                                                           我居北海君南海，寄雁传书谢不能。
                                                                           桃李春风一杯酒，江湖夜雨十年灯。
                                                                           持家但有四立壁，治病不蕲三折肱②。
                                                                           想见读书头已白，隔溪猿哭瘴溪藤。
     【注】①黄几复，诗人的故交，写此诗时，黄几复任职广东，诗人任职山东。② 蕲：求。古语有“三折肱，知为良医”的说法，此处的典故说明黄几复政绩卓著。