第23题: [单项选择]Passage Two Questions 30 to 32 are based on the passage you have just heard. A. Sleep can strengthen memories. B. Sleep can recover memories. C. Sleep can protect memories against interference. D. Sleep can harm memories. 参考答案:D 答案解析:[听力原文] According to Professor Margoliash, which of the following is NOT the effect of sleep <
第24题: [单项选择]确认气管导管是否进入气管的最佳方法是 A. 胸部听诊 B. 气管导管呼吸水凝汽 C. 按压胸部时,导管口有气流 D. 指脉搏氧饱和度 E. 呼气末二氧化碳波形 参考答案:E