11.超音波參數中,下列何者非透過延遲產生器(delay generator)來控制?
(A)聚焦(focus)
(B)相位調整(phasing)
(C)孔徑(aperture)
(D)軸向解析度(axial resolution)
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統計: A(117), B(137), C(624), D(890), E(0) #2865059
統計: A(117), B(137), C(624), D(890), E(0) #2865059