Which of these are true about the early weeks of the Covid-19 pandemic? ( )
选项:
A:The first cases of Covid-19 were seen in Wuhan in January 2020.
B:Spread to Japan and Thailand in early February 2020
C:Human-to-human transmission was announced in late January 2020
D:WHO declared a global pandemic in March 2020
发布时间:2024-04-04 16:22:30