47．积极：谦卑

A．努力：低调                                        B．强壮：孱弱

C.躁狂：抑郁                                           D．乐观：含蓄

48．坚持：突破

A．学习：发展                                        B．赞同：争论

C.继承：创新                                           D．团结：竞争

49．表扬：恭维

A．肯定：认可                                        B．相信：迷信

C.请教：求教                                           D．激动：生气

50．选择：抉择

A．爱好：嗜好                                        B．决定：决策

C.按时：准时                                              D．参加：参与

51．围湖造田：饮鸩止渴

A．卧薪尝胆：学以致用                          B．忍辱偷生：削足适履

C.兢兢业业：刻苦奋进                             D．山穷水尽：柳暗花明

52．剑拔弩张：偃旗息鼓

A．刚愎自用：从善如流                          B．怨天尤人：唉声叹气

C.举国同庆：万人空巷