【简答题】一个算法的时间复杂度通常用问题规模大小的函数来表示,当一个算法的时间复杂度与问题规模 n 大小无关时,则表示为 __________ ;成正比关系时,则表示为 ___________ ;成对数关系时,则表示为 ___________ ;成平方关系时,则表示为 __________ 。
【单选题】—Who’s that boy? —He is my cousin, and _______ name is Jack.
【单选题】What happened to John's car on their way to the theatre?
【简答题】Who’s that boy/girl?
【单选题】What is the best way if you want to know what to keep and what to cut from your introduction?
【单选题】某样本的标准差为20,样本含量为25,其标准误为
【单选题】—What happened to you on your way back to the hotel last night ? —I lost my way in complete darkness and , things worse , it began to pour .