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"For landlords, the use of smart door locks can bring the houses under the supervision of the public security system, and for tourists, their security would be ensured. For the public security department, it not only strengthens the supervision and management of travelers' information but facilitates the effective tracking and information analysis of online housing resources," said Tu Qiang, chief technology officer of Tujia.

"Free trade zones reflect China's policy of opening-up and the benefits will mainly lie in the liberalization and facilitation of trade and investment," said Huang Xianhai, vice-dean of the School of Economics at Zhejiang University.

"Generally speaking, the economy overcame the adverse impact of the COVID-19 pandemic gradually in the first half of the year and demonstrated a momentum of restorative growth with greater resilience and vitality," Liu Aihua, an NBS spokeswoman, said at a news conference in Beijing.

"For top-level international talent, including teams, our district can offer at least 10 million yuan each year," said Wang Xiaorong, head of the organization department of the Nanshan district committee of the Communist Party of China.

"From the monitoring records, the efforts against air pollution work, especially those in the first eight months, have made me confident about further improvement," said Li, who has worked at the Beijing Environmental Monitoring Center for 18 years.