29 下列何者可由意志力控制?
(A)膀胱壁逼尿肌(detrusor of bladder wall)
(B)外尿道括約肌(external urethral sphincter)
(C)輸尿管縱走肌(longitudinal muscle of ureter)
(D)腎盂平滑肌(smooth muscle of renal pelvis)
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統計: A(76), B(478), C(8), D(3), E(0) #622729
統計: A(76), B(478), C(8), D(3), E(0) #622729