学习星2小说选读Which of the following suggests that the junior Robert Morris would become successful？A．As

通超题目听力原文：Two girls are talking over there. A．B．C．

中国听力原文：F: How many meetings did your father have last week？M: My father had 5 meetings.

当代答案听力原文：F: When was the building built？M: It was built in 1909. When was the building bui

学习星2小说选读听力原文：M: Would you like a bottle of juice？F: No, thanks, I'd tike a cup of tea, please.

通超题目听力原文：M: I've got a headache.F: Oh, don't worry, little boy. Now open your mouth and sa

中国听力原文：F: Have you heard from your sister yet？M: Yes, I got a letter from her yesterday.

当代答案听力原文：F: Is this your book, Steven？M: No, it isn't mine. It's Sam's. Whose book is it？A

学习星2小说选读听力原文：M: Where does Miss King come from？F: She comes from Tokyo. What does Miss King pr

通超题目听力原文：M: Would you like to come out for a drink？F: Yes, that would be wonderful. Thanks

程序语言的大多数语法现象可用上下文无关文法描述。对于一个上下文无关文法 G=（N，中国T，P，S)，其中N是

在数据库系统中，当代答案数据的完整性约束的建立需要通过数据库管理系统提供的（51)语言来实现。A．数据定义

若某个关系的主码为全码，学习星2小说选读则该主码应包含（52)。A．单个属性B．两个属性C．多个属性D．全部属性

若事务T1对数据A已加排它锁，通超题目那么其他事务对数据A（56)。A．加共享锁成功，加排它锁失败B．加排它锁成

拓扑排序是指有向图中的所有顶点排成一个线性序列的过程，中国若在有向图中从顶点 vi到vj有一条路径，

对于n（n≥0)个元素构成的线性序列L，在（60)时适合采用链式存储结构。A．需要频繁修改L中元素的值B．需

迪杰斯特拉（Dijkstra)算法按照路径长度递增的方式求解单源点最短路径问题，该算法运用了（63)算法

关于算法与数据结构的关系，（64)是正确的。A．算法的实现依赖于数据结构的设计B．算法的效率与数据结

若一个问题既可以用迭代方式也可以用递归方式求解，则（65)方法具有更高的时空效率。A．迭代B．递归C．

在FTP协议中，控制连接是由（66)主动建立的。A．服务器端B．客户端C．操作系统D．服务捉供商