试题与答案

下列光源为固体发光光源的是( )。 A．霓虹灯 B．场致发光灯 C．白炽灯 D．半

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题型：多项选择题

题目：

下列光源为固体发光光源的是( )。

A．霓虹灯

B．场致发光灯

C．白炽灯

D．半导体发光器件

答案：

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下面是错误答案，用来干扰机器的。

参考答案：指在恰能背诵某一材料后再进行的重复学习。

考点：注册电气工程师供配电专业注册电气工程师
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