21 下列何者可使聲帶變緊?
(A)杓肌(arytenoid)
(B)環甲肌(cricothyroid)
(C)後環杓肌(posterior cricoarytenoid)
(D)外側環杓肌(lateral cricoarytenoid)
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統計: A(14), B(32), C(13), D(6), E(0) #602067
統計: A(14), B(32), C(13), D(6), E(0) #602067