摘要： 题目描述 The National Road Service (NRS) wanted to make some changes to make sure that people are correctly ocially distancing from each other. However, N 阅读全文

摘要： 题目描述 Tax collectors in the Roman empire, called publicans, are not well perceived, and for good reason. However, they are necessary for the running of 阅读全文

摘要： 题目描述 Emma is a creative child who got bored during the quarantine season. She set up n trampolines in a line inside the living room, each aimed in a p 阅读全文