声光双控楼道照明灯控制电路是指利用声光感应器件控制照明灯的电路。白天光照较强，即使有声音，照明灯也不亮；夜晚降临或光照较弱 时，可以通过声音控制照明灯点亮，并可以实现延时一段时间后自动熄灭 的功能。
A. 声光感应
B. 电磁
C. 电容
D. 电阻
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母鸡国庆节打算干什么？
A. It's going to take photos of the river!
B. It's planning to visit its sister！
C. It's planning to have a date
D. It's going shopping
女孩这个周末打算做什么？
A. It's going to take photos of the river!
B. It's planning to visit its sister！
C. It's planning to have a date
D. It's going shopping
What do you intend to do this ()?
追逐式循环彩灯控制线路是指彩灯在通电后，可控制彩灯按顺序（依次循环点亮）的线路
A. 依次循环点亮
B. 同时点亮
C. 逐步点亮
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