有关颈髓脊髓休克的特点，下列错误的是（）

A.脊髓突然失去高位中枢的调节，进入暂时的无反应状态

B.脊髓休克期内损伤平面以下呈弛缓性瘫

C.反射恢复后屈肌反射往往增强

D.反射恢复的顺序是由近及远，由高至低

E.脊髓休克期的长短与年龄有关，小儿较成人短

——How long have you been going to in Tanggou Senior Middle School？

——More than two years.

——So it will be less than one year           you graduate from this school.

A．when

B．that

C．before

D．since