脱髓鞘性疾病是（）
A.神经元及髓鞘均受累
B.神经元、轴索及髓鞘均受累
C.轴索及髓鞘变性
D.髓鞘破坏，轴索相对完整
E.神经元及轴索变性
参考答案：D
How many boys are there in the classroom? _____________ten boys.
A．It is
B．These are
C． There is
D．There are.
温脾汤中体现“制性取用”意义的药对是
A．大黄、甘草B．附子、干姜C．人参、甘草D．大黄、附子E．人参、大黄
