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Diplomats visit Shougang Park in Beijing. [Photo by Ye Zizhen/chinadaily.com.cn]

Didi has 550 million registered users.

Diseases like rheumatoid arthritis, psoriasis and systemic lupus erythematosus top the team's watchlist, and have been the main research interest for the three academies.

Despite the pandemic, industry observers say overall enthusiasm for overseas studies will remain stable.

Diao said the negotiations are likely to be long and tough. For years, the civil aviation aircraft market has been a seller's market. The dominant status of the aircraft manufacturer duopoly of Boeing and Airbus has put airlines in a vulnerable position in negotiations.