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Another school had a senior teacher test positive after also returning from the United States on a different flight, and closed its doors on Tuesday with the school's principal addressing students in an "online assembly" the next day.

Answering whether China and the EU will reach consensus in global trade and investment, Lu said both sides agreed to expand economic and trade cooperation, support and promote economic globalization at the 7th China-EU High-level Economic and Trade Dialogue in Beijing last month. Both sides also agreed to fight unilateralism and trade protectionism and safeguard the rule-based multilateral trading system, he said.

Another leading Chinese carmaker, Great Wall Motors, is reaping fruits of its going-global efforts in Russia.

Another analyst suggested China gradually open or adjust the price of the country's refined oil products.

Apart from the support of the technologies, designs and investments, CSCEC's working with local construction companies and sources for raw material and large equipment supplies to jointly build the new CBD also means the project is helping to provide thousands of job opportunities for the local economy and promote its development.