以下有关坐骨神经痛的描述那项不正确()

A．患者不敢屈曲膝关节

B．多为单侧性

C．常见于青壮年

D．持续性钝痛，阵发性加剧

E．疼痛位于臀部、大腿后部、小腿后外侧及足外侧

It is good to ____ , for people will always believe in you.[      ]

A. keep your word                              

B. break your word

C. take a chance                                  

D. play jokes