问题详情

Which of the following statements on the treatment of back pain is true？
A．Spinal fusion provides a better cure than other treatments.
B．Spinal fusion is no good to patients suffering from back pains.
C．There is limited evidence as to which treatment is better.
D．Doctors have great confidence in the benefits of spinal fusion.请帮忙给出正确答案和分析，谢谢！