15.母豬的「母體認知懷孕(maternal recognition of pregnancy)」,最早發生在配種後第幾
天?
(A)2-3
(B)5-7
(C)8-9
(D)11-12
答案:登入後查看
統計: A(38), B(366), C(178), D(525), E(0) #853538
統計: A(38), B(366), C(178), D(525), E(0) #853538