腰椎间盘突出症的最好发节段是

A．胸₁₂腰₁
B．腰_3、4
C．腰₅骶₁
D．腰_2、3
E．腰_4、5

Which of the following statements about verification of compliance with the Global Investment Performance Standards (GIPS) is least accurate（）

A. Verification is voluntary. 

B. Verification report can be performed by an independent third party. 

C. Verification report can be performed with specific composites.