主页
学科
搜索
账户
常见问题
当前学科:配电线路(技师)
题目:
单选
变压器绝缘电阻的测量工作,应在气温()℃以上的干燥天气进行。
A . A.0
B . B.5
C . C.10
D . D.20
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
证券投资者保护基金公司的职责有()。
精密成型磨削可以达到的外形尺寸精度是()?
As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___1___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___2___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to stay up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie awake for a long time, hoping to get a short ___3___ at Father Christmas. Last Christmas, my wife and I successfully hid a few large presents in the storeroom. I ___4___ the moment when my son, Jimmy, would ask me where that new bike had come from, but ___5___ he did not see it. On Christmas Eve, it took the children hours to go to sleep. It must have been nearly ___6___ when my wife and I went quietly into their room and began filling stockings. Then I pushed in the ___7___ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___8___ to get up early. At about five o’clock the next morning, we were woken by loud sounds coming from the children’s room — they were shouting excitedly! Before I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. Even the baby arrived. He moved ___9___ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___10___. The day had really begun with a band! ___4___内应选()
上半口义齿基托后部的封闭区是()
隔离开关使配电线路有明显的断路点。
在CRH1A型动车组的高度调整阀出现故障,或拆卸转向架的时候,()可以防止气囊过渡的崔向移动。
如何判断浮头的轻重?
管理信息系统是一门新型学科,它是属于()。
扩张型心肌病超声心动图检查不可能出现()。
关于骨纤维异常增殖症的描述正确的是()