有线电视系统的防雷设计应考虑防止( )的措施。 A．直击雷 B．_爱下问搜题

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问题多项选择题

有线电视系统的防雷设计应考虑防止( )的措施。

A．直击雷

B．侧击雷

C．感应雷

D．雷电侵入波

答案

参考答案：A,C,D

补全对话，情景问答

给下面的问句找出恰当的答语。

( ) 1. What do you like to do in spring?
( ) 2. What do you like to do in summer?
( ) 3. What do you like to do in winter?
( ) 4. What do you like to do in fall?
( ) 5. What's your favourite season?

A. Fall is my favourite season. Because it's cool.
B. I like to skate on the ice.
C. I like to walk outside in spring.
D. I like the sun. I wear shorts and play outside.
E. I like to fly my kite in the fall.

名词解释

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