线路的过负荷保护，动作电流的动作时间一般取（）。_工厂供电考试_全学科试题题库

当前学科：工厂供电考试

题目：单选
线路的过负荷保护，动作电流的动作时间一般取（）。
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:

由某地300名8岁正常男孩收缩压估计该地8岁正常男孩平均收缩压的95%可信区间，可选择的计算公式为（）

师德属于（）的范畴。

换提货单的凭证是场站收据（海运提单）。

下列对棕色脂肪组织叙述正确的是（）。

解决台湾问题、实现祖国完全统一，是（）的历史进程。

下列关于送审报告的表述，错误的是（）。

民用航空各类无线电业务均属于安全业务，不应受到（），必须予以保护。

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! ___7___内应选（）

招商招展的目标客户如何分类，试举出至少3个

下列不属于现代主义者的是（）。