Four years. Hao/Kloc-was admitted to Oxford University at the age of 0/9 and graduated from Oxford University at the age of 23. The age of Oxford University is four years. He received a double bachelor's degree in college. One of the outstanding graduates of Oxford University, he is currently the legal representative of Henan Science and Technology Co., Ltd., Beijing Si Hi-Tech Co., Ltd. and Henan Electrophysiology Research Institute Co., Ltd., and has served as a shareholder of Henan Science and Technology Co., Ltd., Beijing Science and Technology Co., Ltd. and Baoshibo (Suzhou) Scientific Instrument Co., Ltd., and an executive of Henan Science and Technology Co., Ltd. and Henan Electrophysiology Research Institute Co., Ltd.