对地电压在（）V以上者称为高压，低于该电压则称为低压。A.380 B.250 C.2 发布时间：2020-01-25 13:50 │ 来源：www.tikuol.com 题型：单项选择题 问题： 对地电压在（）V以上者称为高压，低于该电压则称为低压。A.380B.250C.220D.160
题型：单项选择题 People of Burlington are being disturbed by the sound of bells. Four students from Burlington College of Higher Education are in the bell tower of the 1 and have made up their minds to 2 the bells nonstop for two weeks as a protest (抗议) against heavy trucks which run 3 through the narrow High Street. ( )1. A. college ( )2. A. change ( )3. A. now and then B. village B. repair B. day and night C. town C. ring C. up and down D. church D. shake D. over and over 查看答案
