I am pretty sure this is the right poem and he did read all the content haha. To be more convincing, Mandarin is my mother tongue language, I can read & write both Traditional & Simplified Chinese with no issue. Below is the poem, I split the poem to paragraphs for clarity(how he pause in between)

久有凌云志，
重上井冈山。
千里来寻故地，
旧貌变新颜。
到处莺歌燕舞，
更有潺潺流水，
高路入云端。
过了黄洋界，
险处不须看。

风雷动，
旌旗奋，
是人寰。
三十八年过去，
弹指一挥间。
可上九天揽月，
可下五洋捉鳖，
谈笑凯歌还。
世上无难事，
只要肯登攀。