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  3. When a machine analyses the frequencies used by a particular voice and draws a g

When a machine analyses the frequencies used by a particular voice and draws a g

游客2023-11-20  45
问题 When a machine analyses the frequencies used by a particular voice and draws a graph of them, sound is ______ electronically into a pattern of lines.
选项 A、relieved
B、converted
C、magnified
D、burst
答案 B
解析 根据题意，应该是分析声波的曲线图，实际是通过电子仪器把声音转换成曲线的形式表现出来。因此正确答案是B。其他选项都不符合题意。
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