送交者: WM 于 May 15, 2002 23:43:55:
回答: 去掉每月和七天等具体数字,哺乳动物大抵如此。老椰子误导你。 由 开心果 于 May 15, 2002 18:41:11:
I assume all mammals should have menstruation because they have ovulation and uterines. As you said, the number of days should be different from that of human being.
By the way, your name reminded me of pistachio (one of my favorite snacks).