原方程可化为（x+23）2=0，
解得x1=x2=-23．
故答案为x1=x2=-23．
Which of the following is the nurse’s goal in crisis intervention
A. To provide medication to sedate the client.B. To provide nondirective techniques such as free association.C. To provide problem-solving techniques and structured activities.D. To provide an insight-oriented analytic approac
男性，72岁，下肢瘫痪，近期发现其骶尾部呈紫红色，皮下有硬结和水疱，病人的压疮处于（）
A.淤血红润期
B.炎性红润期
C.炎性浸润期
D.淤血浸润期
E.溃疡期
