在敲响大古钟时会发现停止对大钟的撞击后,大钟仍“余音未止”,其主要原因是[ ] 发布时间:2017-04-27 02:51 │ 来源:www.tikuol.com 题型:选择题 问题: 在敲响大古钟时会发现停止对大钟的撞击后,大钟仍“余音未止”,其主要原因是[ ]A.大钟还在振动 B.钟声的回声 C.钟停止振动,空气还在振动D.人的听觉发生延长
题型:选择题 Which of the following is not a contributory factor to thermoregulation in the preterm neonateA. Immature central nervous system (CNS).B. Large skin surface area.C. Lack of subcutaneous (S. C. ) and brown fat.D. Tendency toward capillary fragility. 查看答案