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【单选题】
● SQL语言支持关系数据库的三级模式结构图如下所示，图中视图、基本表、存储文件分别对应（40）。 （40）A.
模式、内模式、外模式
B.
外模式、模式、内模式
C.
模式、外模式、内模式
D.
外模式、内模式、模式
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【单选题】听力原文：Narrator Now listen to a conversation between two students. Sarah Hi, Bob. Bob Hi, Sarah. Sarah How is your history paper coming? Bob Not so great. Sarah Why? What happened? I thought you were al...
A.
He found the computer center closed early.
B.
He has not finished his paper yet.
C.
He had to stay up late typing his paper.
D.
His computer is not working.
【简答题】A Trip to the Forest One day Bob took two of his friends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing. In the afternoon when they were ab...
【简答题】阅读理解。 One day Bob took two of his frends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing. In the aftemoon when they were about ten kilometer...
【简答题】One day Bob took two of his friends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing. In the afternoon when they were about ten kilometres fr...
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