27.在成人心臟的卵圓窩(fossa ovalis)是胎兒時的何種構造?
(A)卵圓窗(oval window)
(B)卵圓孔(foramen ovale)
(C)靜脈導管(ductus venosus)
(D)房室孔(atrioventricular orifice)
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統計: A(302), B(1585), C(112), D(66), E(0) #1837976
統計: A(302), B(1585), C(112), D(66), E(0) #1837976