39.某病患的腎臟超音波影像如下圖,請問箭頭處的假影為何?
(A)range ambiguity
(B)speckle
(C)shadowing
(D)aliasing
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統計: A(1400), B(559), C(137), D(170), E(0) #2039556
統計: A(1400), B(559), C(137), D(170), E(0) #2039556