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At the very beginning of his speech, before talking about China-Africa cooperation, Jin stressed the need to protect Africa's environment amid development.

At the entrance to Wuyi Mountain, health codes were required for tourists.

At the interface, "locks" made by fragments of nucleolin protein DNA were installed, forming a tube-shaped nano "Trojan horse" or nanorobot, which is 90 nanometers long and has a diameter of 19 nanometers.

At present, FedEx operates about 260 flights weekly on the mainland through four key airports — Beijing Capital International Airport, Shanghai Pudong International Airport, Shenzhen Bao'an International Airport and Guangzhou Baiyun International Airport.

At the same time, Zhao pointed to the significantly lower penetration rate of fresh milk compared to other categories, which spells business opportunities.