33.後環杓肌(posterior cricoarytenoid muscle)的作用為何?
(A)併合聲帶
(B)分開聲帶
(C)鬆弛聲帶
(D)繃緊聲帶
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統計: A(150), B(565), C(318), D(368), E(0) #1155467
統計: A(150), B(565), C(318), D(368), E(0) #1155467