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The document said China will make comprehensive use of the law, technology and social governance policies to step up IPR protection.

At present, China's average yield of rice is about 500 kg per mu. Ordinary farmers can produce 600 kg to 700 kg of rice per mu by growing some excellent second-generation hybrid rice varieties, said Li Xinqi, a researcher with Hunan hybrid rice research center.

BEIJING, Oct. 27 (Xinhua) -- A senior official of the Communist Party of China (CPC) on Sunday called for efforts to learn from and pass on the noble spirit of Li Dazhao, a founder of the CPC, and other veterans of the revolution.

Bolsonaro thanked China for supporting Brazil's sovereignty over the Amazon rainforest issue and expressed his willingness to cooperate with China on biodiversity conservation.

"We strongly urge the U.S. side to stop any form of contact with the ** clique, stop making irresponsible remarks, stop using Tibet-related issues to interfere in China's internal affairs, and do more to advance China-U.S. mutual trust and cooperation," he added.