下面哪一项是椎管内神经鞘瘤的特征性临床表现（）
A.感觉障碍
B.神经根疼痛
C.大小便功能障碍
D.肢体运动障碍
E.肌张力增高
参考答案：B
－Have you written anything on Chinese traditional food so far?
－_________, but I have a plan for it.
A．Ever since
B．Later on
C．Not yet
D．From now on
确定贫血的常用指标是 （）
A.MCH、MCV、MCHC
B.RBC、MCH、RDW
C.RBC、Hb、HCT
D.HCT、RDW、MCHC
E.MCV、RBC、MCHC
