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He called for efforts to attach greater importance to scientific and technological innovation and the tackling of key and core technologies to enhance the competitiveness of state-owned enterprises (SOEs).

They should also build a regional network of "fast tracks" and "green lanes" to facilitate the flow of people and goods, and expand the trade of farm produce, Li said.

"The Riyadh Summit, according to our view, will not only review G20's cooperation over the past year and make future plans; more importantly, it presents an important opportunity to set the direction for improving global governance in the post-COVID era," Wang said.

Xi said military training is the center of the military's regular work as it is the means for the military to generate and improve its combat capability and is the most direct form of military preparedness.

He also reaffirmed China's commitment to striving to peak carbon dioxide emissions by 2030 and achieve carbon neutrality by 2060.