女，55岁。双上肢麻木、双手系鞋带困难7个月，尿频2个月，病情时好时坏；查体：Hoffmann（+），Babinski（+），双膝腱反射亢进，双下肢肌张力增高，躯干平 * * 线以下针刺觉减退，患者最可能的情况是（）.

A.脊髓型颈椎病

B.神经根型颈椎病

C.椎管内肿瘤

D.椎动脉型颈椎病

E.交感型颈椎病

Which of the following statements on spreads is FALSE（）

A. The Z-spread may be used for bonds that contain call options.

B. The Z-spread will equal the nominal spread if the term structure of interest rates is flat.

C. The nominal spread is the difference of specific security’s yield-to-maturity (YTM) and the YTM of a Treasury security of similar maturity.