腰椎间盘脱出所致的坐骨神经痛的体征是（）
A.戈登征阳性
B.克匿格征阳性
C.查多克征阳性
D.拉塞格征阳性
E.霍夫曼征阳性
参考答案：D
82. When we heard the news that our team has won more than 30 gold medals Athena Olympic Games, we sang and danced _____ joy.
A．to
B．with
C．at
D．Of
