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Chinese scientists are preparing for more missions in the Tianwen series, including ventures to return rock samples from Mars and an asteroid, to perform a flyby of Jupiter and to explore the margins of the sun's vast heliosphere. But if Tianwen-1 reaches Mars as planned, "it will put China in the space exploration business in a big way," said Logsdon.

"Some U.S. politicians have abused state power to unjustifiably suppress non-U.S. companies under the pretext of national security. Such bandit action has done harm to the rights and interests of consumers and businesses in the United States and other countries, and it is bound to be opposed and resisted by the international community," said Zhao, who stressed that the move is organized and systematic economic bullying of non-U.S. companies that take the lead in a certain field.

The Chinese border troops were forced to take countermeasures to control the situation, Zhao said, noting the Indian side's move is a grave violation of relevant bilateral agreements, which heightened tensions and made the situation highly susceptible to misunderstanding and miscalculation.

Last year, the fourth plenary session of the 19th CPC Central Committee adopted a decision on institution building. Xi said China must use the strength of its institutions to cope with risks and challenges.

According to the agreement between the UN and the United States regarding the UN headquarters, which took effect in 1947, the United States is generally required to allow access to the UN for foreign diplomats. Nonetheless, Washington has repeatedly set aside its international responsibilities and obligations, using visas for UN-bound diplomats as bargaining chips, and even weapons, merely for its own political calculations.