Merkel Spoke at UCASMerkel Spoke at UCASMerkel was welcome by Bai Chunli, President of CAS.Merkel was welcome by Bai Chunli, President of CAS.Bai Chunli delivered the welcome speech.Bai Chunli delivered the welcome speech. Ding Zhongli, Vice-President of CAS, served as the host. Ding Zhongli, Vice-President of CAS, served as the host.Merkel answered the question of students from UCAS and Nanjing University.Merkel answered the question of students from UCAS and Nanjing University.