【简答题】CPR is cardiopulmonary resuscitation (心肺复苏). It forces air into the lungs and pumps(用泵抽) blood and oxygen to the brain in order to increase the chances that a person whose heart stops will survive. It...
【单选题】听力原文:As I walked into this old haunted house, I heard this terrible scream and my blood ran cold when I saw this figure in white rushing straight at me. What does the speaker mean?