( q0 e k- f/ E- |$ L! N* R+ L* y6 DXY(man) x XX(woman) = ) O( Q$ h8 L# H
XX or XY, XX or XX, XY or XY. Some people have a twin. n* ^7 o; s4 ^! f, M3 j$ v4 n) h7 N" ~' o) a7 L
If you really need a boy, you can ask a doctor to take your Y only and injiect into your wife's XX, then you will have boy only.1 c a4 q0 M B& N
) v5 C* u, {& T" y3 NBecareful, eating drug may cause mutation although the possibility is not so high.
Autumn:你好!, X" v% {6 a' W% J7 v+ D
据我分析,生男生女取决于做爱时的姿势,体力,和之后的工作。理由如下:1。男精子活跃但不持久。就象运动员一样,男精子是短跑选手,女精子是长跑选手。如果作爱时男方插的较深,容易得男孩。因为男精子一冲则就。所以说姿势重要。具体啥姿势就自己参祥。2。同样道理,男方体力要保证。3。完事之后,女方不易短时站起。可增加受孕机会。4。算好时间,女性主宰性生活多为男孩,应在女性情期稍后,双方连续不断努力,则一蹴而就。 * s* V4 I$ X; u. p: b. X) j祝你如愿!成功告我一声。