测量回弹值应在构件测区内超声波的发射和接收面各弹击（）点。
A.5
B.8
C.10
D.16
参考答案：B
简述邻接法（NJ）构树的算法思想。
The nurse-manager has noticed a sharp increase in the mediation errors with IV antibiotics over the last month. She discusses the situation with each nurse involved. What other action should she take（）
A. Document it on their evaluation.
B. Ask them to attend inservice training for administration of IV medications.
C. Report them to the supervisor.
D. Report the incidents to the hospital attorney.
