问题
单项选择题
一段导线的电阻与其两端所加的电压（）。
A．成正比
B．成反比
C．无关
D．相同
答案
参考答案：A
搜题请搜索小程序“爱下问搜题”
一段导线的电阻与其两端所加的电压（）。
A．成正比
B．成反比
C．无关
D．相同
参考答案：A
| TV Programmes | |
| Channel(频道) | Channel 2 |
| 18:00 Around China | 17:35 Computers Today |
| 18:40 Children’s programme | 18:05 Foreign Arts |
| 19:00 News | 18:30 English Classroom |
| 19:35 Weather Report | 19:10 Animal World |
| 19:40 Around the World | 19:35 China ’06 |
| 20:05 TV play: Sisters | 20:20 Sports |
| 21:00 English for Today | 21:00 TV play: Guo Lanying |
| 21:20 Classical Music | 21:50 English News |
| 21:55 Talk Show | 22:10 On TV Next Week |
How long does the TV play Sisters last
[A] 30 minutes.[B] 55 minutes.[C] 90 minutes.