"同卵双胞胎产生的机率大约就是千分之四左右,而异卵双胞胎会少于千分之三"
那其余的千分之九百零三是什么类型的双胞胎?
"同卵双胞胎产生的机率大约就是千分之四左右,而异卵双胞胎会少于千分之三"
那其余的千分之九百零三是什么类型的双胞胎?
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