20.下列何者的分泌物含量占精液體積(volume of semen)的比例最高?
(A)曲細精管(seminiferous tubule)
(B)尿道球腺(bulbourethral gland)
(C)前列腺(prostate gland)
(D)精囊(seminal vesicle)
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統計: A(320), B(158), C(628), D(1121), E(0) #1840468
統計: A(320), B(158), C(628), D(1121), E(0) #1840468