4.What comes once in a year,twice in a week and never in a day?_英语解答

4.What comes once in a year,twice in a week and never in a day?

人气：143 ℃　时间：2020-04-04 22:17:20

解答

字母e
什么字母一年出现一次,一个月从不出现,一个礼拜...