【判断题】
为了保证安全可靠供电，变电所应有两台所用电变压器，并且取自不同的电源。
A. 对
B. 错
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答案
A
解析
暂无解析
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【判断题】
表现媒体是指能直接作用于人的感官，使人能产生直接感觉的媒体。用于人类感知客观环境。例如人的语音、文字、音乐、自然界的声音、图形图像、动画、视频等都属于感觉媒体。
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