www.bbc.com ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ Beijing and Shenzhen loosen more curbs as China fine-tunes COVID-19 policy 中国、新型コロナ対策を緩和 Beijing residents Dec. 3 cheered the removal of COVID-19 testing booths, while Shenzhen …