题目内容
带宽(频宽)的含义是指( )
2021-10-14
A.线阵或凸阵探头超声扫描的宽度
B.探头发出超声束的宽度
C.线阵探头超声扫描的宽度
D.凸阵探头超声扫描的宽度
E.探头发出超声的频率范围
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