The methods to protect people from SARS-CoV-2 infection include
A、A. Stay at home B. Avoid going to the crowded places C. Wear a mask in the outside D. Wash your hands timely
B、A. Stay at home B. Avoid going to the crowded places C. Wear a mask in the outside D. Wash your hands timely
C、A. Stay at home B. Avoid going to the crowded places C. Wear a mask in the outside D. Wash your hands timely
D、A. Stay at home B. Avoid going to the crowded places C. Wear a mask in the outside D. Wash your hands timely