第26题: [单项选择]下列关于前置胎盘的知识,错误的是() A. 妊娠晚期的严重并发症 B. 妊娠晚期出血最常见的原因 C. 妊娠30周后,胎盘附着于子宫下段 D. 胎盘位置低于胎先露部 E. 胎盘下缘可达到或覆盖宫颈内口 参考答案:C 答案解析:前置胎盘是指妊娠28周后,胎盘附着与子宫下段,甚至胎盘下缘达到或覆盖宫颈内口,其位置低于胎先露部。
第27题: [单项选择] {$mediaurl} [*] [*]What is the talk mainly about A. The dangers of driving in icy conditions B. The formation of ice from water vapor C. The various colors that ice crystals take D. The ice that falls to earth as precipitation 参考答案:B 答案解析:[解析] 6-11 W: I’m glad to see everyone made it to school safely this morning. I wish I could say