FILE - A police officer wearing a face mask and goggles to protect against COVID-19, stands near a poster of a skier on the wall at a train station in Zhangjiakou in northern China's Hebei Province, Friday, Nov. 26, 2021. China is threatening to take “firm countermeasures" if the U.S. proceeds with a diplomatic boycott of February's Beijing Winter Olympic Games. Foreign Ministry spokesperson Zhao Lijian on Monday accused U.S. politicians of grandstanding over the issue of not sending dignitaries to attend the events that China hopes will showcase its economic development. (AP Photo/Mark Schiefelbein, File)

A visitor to the Shougang Park walks past the a sculpture for the Beijing Winter Olympics in Beijing, China, Tuesday, Nov. 9, 2021. China on Monday, Dec. 6, 2021, threatened to take "firm countermeasures" if the U.S. proceeds with a diplomatic boycott of February's Beijing Winter Olympic Games. (AP Photo/Ng Han Guan)

A visitor to the Shougang Park walks past the logos for the Beijing Winter Olympics and Paralympics in Beijing, China, Tuesday, Nov. 9, 2021. China on Monday, Dec. 6, 2021 threatened to take "firm countermeasures" if the U.S. proceeds with a diplomatic boycott of February's Beijing Winter Olympic Games. (AP Photo/Ng Han Guan)

FILE - In this file photo taken Monday, Feb. 24, 2020, Chinese Foreign Ministry spokesperson Zhao Lijian speaks during a daily briefing at the Ministry of Foreign Affairs office in Beijing. China is threatening to take “firm countermeasures" if the U.S. proceeds with a diplomatic boycott of February's Beijing Winter Olympic Games. Zhao on Monday, Dec. 6, 2021, accused U.S. politicians of grandstanding over the issue of not sending dignitaries to attend the events that China hopes will showcase its economic development. (AP Photo/Andy Wong, File)