(AFP/Getty Images) 14 Abril 2020 Your Excellency Ambassador Mr. Gui Tiankai Your Excellency Ambassador Mr. Gong Tao Ambassador of China to U.S. Ambassador of China to Angola Washington, DC 20007 Luanda-Angola Your Excellency Ambassador Mr. Cai Run Ambassador of China to Portugal Lisbon-Portugal Subject: Request for explanation  Dear His Excellency Gui Tiankai, Gong Tao…