英语翻译
题目
英语翻译
There were 8 persons at a brithday party.Everyone shook hands with one another.Nobody shook hands with the same person twice.How many handshakes were exchanged at the party?
答案
生日聚会上共有8个人.每个人都和另一个人彼此握手.没人和同一个人握两次手.那么,在聚会上,这些人一共交换握了几次手?
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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