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 nurse.

近年来，我国人大代表的素质不断提高，过去有的人大代表是当“哑巴代表”——有口不能说话；有的是当“丫环代表”——当家不敢作主；有的是当“举手代表”——与台上保持高度一致；现在懂得做个真正的人大代表，为百姓说话，当好百姓的代言人，这反映了（）。

A.人大代表的权利在不断扩大

B.我国的民主制度在不断完善

C.人大代表的民主意识在不断增强

D.人大代表的地位在不断改变