题型:问答题 The nurse discusses discharge plan with the parents of a child following a sickle cell crisis. Which of the following would the nurse emphasize the need to seek prompt health careA. Headaches and nausea.B. Fatigue and lassitude.C. Skin rash and itching.D. Sore throat and fever. 查看答案
题型:问答题 急性颅内压增高时病人早期生命体征改变为()A.血压升高,脉搏变缓,脉压变小B.血压升高,脉搏增快,脉压增大C.血压降低,脉搏变缓,脉压变小D.血压降低,脉搏增快,脉压变小E.血压升高,脉搏变缓,脉压增大 查看答案
题型:问答题 如图所示,一细杆与水桶相连,水桶中装有水,水桶与细杆一起在竖直平面内做圆周运动,水桶中水的质量 m=0.5kg,水的重心到转轴 O 的距离 L=50cm,g 取 10m/s2.(1)若水桶转至最高点时水不流出来,求水桶的最小速率.(结果可用根式表示)(2)若在最高点时水桶的速率 v=3m/s,求水对桶底的压力大小. 查看答案