搜题请搜索小程序“爱下问搜题”
问题 问答题 简答题

室内外配线的基本要求有哪些？

答案

参考答案：

导线额定电压应大于线路的工作电压，绝缘应符合线路的安装方式和敷设环境，截面应满足供电负荷和电压降以及机械强度的要求。

单项选择题

县级以上的地方各级（）主管本行政区的军人抚恤优待工作。

A、民政部门

B、武装部门

C、社会保障中心

D、保险系统
查看答案
单项选择题

Throughout the 19th century and into the 20th, citizens of the United States maintained a bias against big cities. Most lived on farms and in small towns and believed cities to be centres of (1) , crime, poverty and moral (2) Their distrust was caused, (3) , by a national ideology that (4) farming the greatest occupation and rural living (5) to urban living. This attitude (6) even as the number of urban dwellers increased and cities became an essential (7) of the national landscape. Gradually, economic reality overcame ideology. Thousands (8) the precarious (不稳定的) life on the farm for more secure and better paying jobs in the city. But when these people (9) from the countryside, they carried their fears and suspicions with them. These new urbanities, already convinced that cities were (10) with great problems, eagerly (11) the progressive reforms that promised to bring order out of the (12) of the city.

One of many reforms came (13) the area of public utilities. Water and sewerage systems were usually operated by (14) governments, but the gas and electric networks were privately owned. Reformers feared that the privately owned utility companies would (15) exorbitant (过渡的) rates for these essential services and (16) them only to people who could afford them. Some city and state governments responded by (17) the utility companies, but a number of cities began to supply these services themselves. (18) of these reforms argued that public ownership and regulation would (19) widespread access to these utilities and guarantee a (20) price.

4（）

A.proclaimed

B.exclaimed

C.claimed

D.reclaim
查看答案