引起瞳神干缺的主要原因是:
A.凝脂翳B.花翳白陷C.疳积上目D.瞳神紧小失治E.混睛障
参考答案:D
某生物学习小组开展“环境水质对青蛙受精卵孵化的影响”的探究活动:制作2组生态瓶并编号,A组各加入200ml的清水,B组加入200ml一定浓度的污水;然后各放入100粒青蛙卵到瓶中,在相同适宜的环境中孵化.请分析作答.
(1)实验时需要定时观察记录的主要内容是______.
(2)他们选取受精卵数量为100粒而不是5粒的是______.
(3)若其中有一组孵化出小蝌蚪的数量少且部分形态异常,你估计是______组,原因是______.
Which of the following nursing interventions is most important postoperatively for an infant who has received a ventriculoperitoneal shunt()
A. Monitoring intake and output.
B. Initiating oral feedings.
C. Allowing the infant to rest undisturbed.
D. Providing age-appropriate diversionary activities.