21.In which event did Gu Ailing win a silver medal in the Beijing 2022 Winter Games?
A.Big Air.B.Slopestyle.
C.Halfpipe.D.Figure skating.
22.What place did Juraj Slafkovsky win in the 2022 Beijing Olympic Games?
A.The gold medal.B.The silver medal.
C.The bronze medal.D.The fourth place.