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1·In the web server of network teaching system, student cramp out the title, answer the title from it, teacher add to the title, amend the title in it, manager add to the user, d…

此网站能够实现学生从题库中抽取题目，回答题目，老师向题库中添加题目，修改题目及管理员添加用户，删除用户等功能。 文中介绍了制作此网站所需要的开发…

2·We have had our first casualty. One runner has dropped out with cramp.

我们有了第一位伤员，有一位队员因腿部痉挛退出了。

3·He never swam far out. He was afraid of getting cramp.

他从来不游得很远。他怕抽筋。