標題: Natural childbirth [列印本頁] 作者: njtianbei 時間: 2007-6-20 09:37 標題: Natural childbirth Natural childbirth
Two siblings are born naturally on the same date, in the same year, to
the same mother and the same father. However, they are not twins----
neither fraternal nor identical. Is this possible or impossible?作者: 記憶中的橡皮擦 時間: 2007-6-20 12:33
不知道了，連體嬰兒嗎？作者: angelo391969 時間: 2007-6-24 05:10
