严禁穿湿工衣、工鞋或戴湿手套操作电气设备。在雨、雪天气下操作闸刀时，必须戴绝缘手套。
参考答案：对
－Linda, the phone in your office can’t be connected all the time. Why?
－Oh, sorry, Miss Miles. The service ___ since last Wednesday.
A．has been stopped
B．is stopped
C．was stopped
D．had been stopped
关于痉挛性大脑性瘫痪，下列哪项畸形最少见（）
A.足内翻
B.跟腱挛缩
C.膝屈曲挛缩
D.髋屈曲挛缩
E.髋外展挛缩
