各种较重的脊髓损伤后均可立即发生损伤平面以下弛缓性瘫痪。这是失去高级中枢控制的一种病理现象,称之为()
A.脊髓休克
B.脊髓振荡
C.脊髓麻痹
D.截瘫
参考答案:C
She brought with her three friends, none of ___________ I had ever met before.
A.them
B.who
C.whom
D.these
______年第20届奥运会在我国首都北京举行,这一年的二月有______天,合______个星期又______天.