皮下埋植剂取出术后，受术者应于术后（）个月随访1次。
A.1～3
B.3～6
C.6～9
D.9～12
参考答案：B
煤气发生炉内的氧化层亦称火层，一般所称炉内反应温度是指炉内火层的温度。
The nurse is caring for a client who underwent a total hip replacement. What should the nurse and other caregivers do to prevent dislocation of the new prosthesis ？（）
A．Keep the affected leg in a position of adduction.
B．Use measures other than turning to prevent pressure ulcers.
C．Prevent internal rotation of the affected leg.
D．Keep the hip flexed by placing pillows under the client's knee.
