提示一下,精子非常小,隻有DNA, 卵子卻很大
所有跟帖:
• 有高中的生物學知識就能解釋了,這兒這麽多博士呢 -janeice60- ♂ (0 bytes) () 05/13/2023 postreply 19:55:05
• 有高中的生物學知識就能解釋了,這兒這麽多博士呢 -janeice60- ♂ (0 bytes) () 05/13/2023 postreply 19:55:05
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