Which of the following concepts would the nurse incorporate into the plan of care for a 4-year-old child to psychologically prepare the child for cardiac catheterization

A. Anxiety decreases when a preschooler is protected from learning about unpleasant events.
B. Preschoolers are unable to understand the procedure.
C. Little psychological preparation can be given to preschoolers.
D. Preparation is a joint responsibility of the physician, parents, and nurs

根据罗斯托的观点，在经济发展的大量消费阶段（）

A.人均收入很高，经济已完全工业化

B.人均收入较高，经济已基本工业化

C.人均收入中等，经济刚开始工业化

D.人均收入较低，经济尚未开始工业化