女性患者，70岁。以前没有高血压和糖尿病史。活动中出现头痛伴随左侧肢体无力2小时。即往有两次脑中风史，此次脑CT检查显示右侧顶叶近大脑皮层处一个高密度影。

患者在住院期间出现频繁发作的四肢抽动伴随意识丧失，考虑为惊厥持续状态，需要静脉注射安定治疗，下列哪条规定不妥当 （）

A.缓慢注射，每分钟不超过2mg

B.20分钟后可以重复

C.24小时不超过50mg

D.可以进行静脉点滴

E.注射过程中注意检测呼吸和心脏情况

It was only with the help of the local guide          .[ ]

A. was the mountain climber rescued          

B. that the mountain climber was rescued

C. when the mountain climber was rescued    

D. then the mountain climber was rescued