依据《电力生产安全工作规定》(华电国际生〔2013〕914号)，离开检修维护岗位连续___个月及以上的人员，必须经《电力安全工作规程》等规程制度考试合格后，方可重新上岗工作。

短文改错We had guests last night who have not stayed 56.______in a B&B hotel ago. They did not want breakfast 57.______because that they were going out early in the 58.______morning. They came back lately and had some 59.______tea. I came into the living room and saw one of 60.______them just go through the kitchen door but turn 61.______on the light. He was looking for a glass the 62.______cupboard. He had no ideas that the kitchen was 63.______not for guests. I just smiled to me and thought. 64.______'what can I do? We are guests after all. ' 65.______(66) 点击查看答案

特殊心肌细胞的特性不包括（ ）。 点击查看答案