There are two President Xi in China! Which President Xi is Trump dealing with?

中國有兩個習近平。特朗普究竟和哪一個習近平洽商？

特朗普是和那個從未公開露面的《中央委員會總書記》習近平，還是那個影官方合照，但沒有國旗作為背景的《中共中央總書記》《席近平》主席？

Is Trump dealing with General Secretary of the Central Committee of the Communist Party of China Xi Jinping who has never appeared in pubic?

Or General Secretary of the Communist Party of China Central Committee & President 《Xi-席》 Jinping who was taken official photo without a national flag as the background?