47.下列關於平滑肌細胞的敘述,何者最正確?
(A)不具肌漿網(sarcoplasmic reticulum)
(B)不具橫小管(transverse tubule)
(C)
不具肌凝蛋白(myosin)
(D)不具橫橋(cross-bridge)
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統計: A(159), B(647), C(136), D(311), E(0) #1839875
統計: A(159), B(647), C(136), D(311), E(0) #1839875