避雷器的作用是防止（）的危险。_低压电工考试_全学科试题题库

当前学科：低压电工考试

题目：单选
避雷器的作用是防止（）的危险。
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:

下列表现考虑为慢性盆腔炎的是（）

Once there was a little girl who came to live in an orphanage (孤儿院). As Christmas time was drawing near, all of the other children 11 telling the little girl about the beautiful Christmas tree that would appear in the hall downstairs on Christmas morning. After their usual 12 , each child would be given their only Christmas gift, a small orange. The headmaster of the orphanage was very 13 with the kids. So on Christmas Eve, when he 14 the little girl slipping down the stairs to peek（偷看）at the much-heard-of Christmas tree, he 15 that the little girl would not receive her Christmas orange because she had been so curious as to disobey the rules. The little girl ran back to her room 16 , crying at her terrible fate. The next morning as the other children were going down for breakfast, the little girl stayed in her bed. She couldn’t 17 the thought of seeing the others receive their gift while there would be 18 for her. Later, as the children came back upstairs, the little girl was surprised to be handed a napkin (餐巾). As she carefully opened it, there, to her 19 , was an orange all peeled and sectioned (分瓣). “ How could this be? ” she asked. Then, she realized how each child had taken one section from their orange for her so that she, too , would have a Christmas orange. What an example of the true meaning of Christmas those orphan children showed that morning! How I 20 the world would show the same kind of concern for others, not only at Christmas, but throughout the year! 请在18处填上正确答案（）

全球物流是一种集各种一般物流功能于一体的开放系统。

设临时高压消防给水系统的高层建筑和裙房，其室内消火栓给水系统应在每个消火栓处设置（）。

下列不属于红细胞代偿增生证据的是（）

治疗鹅口疮错误的是（）

德育活动，古今未断。然而德育这一概念并不是一开始就有的。人类最初的发展中，由于社会生产力水平低下和科学文化极其落后，德育还没有自己独立的概念。()

实行“一国两制”后，台湾特别行政区与香港、澳门特别行政区相比享有的更特殊的权利是（）。

下面哪种血尿应考虑为上尿路结石（）

凡在（）和（）中，发生火车撞轧行人，与其他车辆碰撞等情况，招致人员伤亡或其他车辆破损，均列为路外伤亡事故。