A client on prolonged bed rest has developed a pressure ulcer. The wound shows no signs of healing even though the client has received skin care and has been turned every 2 hours. Which factor is most likely responsible for the failure to heal
A．Inadequate vitamin D intake.
B．Inadequate protein intake.
C．Inadequate massaging of the affected area.
D．Low calcium level.
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(1) 在第一张幻灯片上键入标题“城建公司建筑工程管理系统”，版面改变为“垂直排列标题与文本”。幻灯片的文本部分动画设置为“左下角飞入”。 (2) 使用“Axis”演示文稿设计模板修饰全文；全部幻灯片切换效果设置为“横向棋盘式”。