The trust between the two cities has been completely destroyed because of the incident, he added.
The two southern metropolises in Guangdong province are followed by Shanghai and Beijing, according to the study, which covered a total of 44 mainland cities
The two people's infections were confirmed on Feb 2 and Feb 4, respectively, and both of them were in serious condition.
The two sides are negotiating to meet a deadline, set under a broader trade deal last week, for shipments to begin by mid-July.
The two countries should enhance cooperation to speed up the industrialization of Angola and the economic diversification of the African nation, Xi said.
The transformer substation, which takes up 20 percent of the load of Shenzhen's daily power grid, finished its upgrading not so long ago by establishing a 5G network in the area.
西安晶体植入手术治疗近视
The two-way platform will help connect high-growth innovative start-ups from the two countries with investors and venture capital, and provide professional investment and financing services to support development.
The two countries should deepen cooperation in finance and production capacity within the framework of building the Belt and Road, Xi said when meeting with visiting Luxembourg Prime Minister Xavier Bettel in Beijing on Wednesday
The treaty's signing was witnessed by the leaders of the two countries.
The transaction volume of aeronautics and astronautics contracts went up 59 percent while those for nuclear application technology went down 62 percent than the previous year.