应吉林东北师范大学程舒伟教授、东北农业大学赵鑫教授、哈尔滨师范大学李淑娟教授邀请,开始东北学旅之行,共10天。5月11日,同内子王黎及中国近代史博士生孙诗锦乘火车赴长春。5月12日,早6时到达长春,程舒伟至车站来迎,下榻其校内由香港教育学院出资建造的宾馆。10时,郑德荣教授来访,畅叙近年个人的学术活动及学术研究,并谈及糖尿病的治疗。德荣今年被聘为终身教授,为他欣慰。 At the invitation of Professor Cheng Shuwei from Northeast Normal University in Jilin Province, Professor Zhao Xin from Northeast Agricultural University and Professor Li Shujuan from Harbin Normal University, the trip to Northeast China started for 10 days. On May 11, I went to Changchun by train with Sonny Wang, the son of Nei Zi, and Dr. Sun Shijin, a doctor of modern history in China. May 12, as early as 6 o’clock arrived in Changchun, Cheng Shuwei to the station to welcome, staying at their school funded by the Hong Kong Institute of Education to build hotels. At 10.00 hours, Professor Cheng Derong visited and briefed on individual academic activities and academic researches in recent years. He also talked about the treatment of diabetes. Derong was hired as a tenured professor this year, for his gratification.