某长度为2m的导体以υ=2.0m/s的速度，在磁通密度B=1.3T的恒定磁

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问题单项选择题

某长度为2m的导体以υ=2.0m/s的速度，在磁通密度B=1.3T的恒定磁场内匀速运动。导体自身、υ与B三者互相垂直。那么导体感应电动势e的大小应等于（）。

A.0V

B.5.2V

C.1.3V

D.不确定

答案

参考答案：B

阅读理解

阅读理解。

His name is Paul. He is from England, and he's thirteen years. His birthday is December 16th. He gets

up at 6:00. He goes to school at 7:00. He has four classes in the morning. He does exercises in the afternoon.

He comes home at 5:00. In the evening, he watches TV or reads books. He likes to play on the computer.

His favourite food is hamburgers. He doesn't like meat. On Sunday he goes to the movie theatre.

1. Where is Paul from?

___________________.

2. What does he like to do?

_____________________.

3. What is his favourite food?

_____________________.

4. What does he do on Sunday?

______________________.

单项选择题

信号系统的ATP安全责任灯是由ATP通道的（）模块控制的。

A、SECOP1

B、SECOP2

C、SECOP3

D、SYSAK