【单选题】【消耗次数:1】
20. Only when he had handed in his exam paper ____ he had made several mistakes.
he has realized
does he realize
has he realized
did he realize
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相关题目
【单选题】 It was not until he arrived in class _____ realized he had forgotten his book.
①  when he
②  that he
③  and he
④  he
【单选题】 15.The book was so interesting that he had read it for three hours ______ he realized it.
①  when
②  until
③  after
④  before
【单选题】 3. He had to ______ his past actions when he retired, or he would be punished.
①  consider
②  account for
③  think
④  popular
【判断题】 He had his leg break when he slipped on a piece of ice.
①  正确
②  错误
【单选题】 “ Has he seen this film ? ” “Yes. He _________ it several days ago.”
①  saw
②  has seen
③  had seen
④  was seeing
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.2. Why would it not be easy for Robert to prove himself?
①  Because he was not sure if he was really strong.
②  Because he was new and was not wanted in the street.
③  Because the other boys had found out what kind of a boy he was.
④  Because he must choose the best way to prove himself.
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.4. What did the biggest of the group mean by shaking his head?
①  He did not want to say anything about what Robert had done.B. He had not thought Robert could play so wonderfully.C. He did not want to make friends with Robert.D. He did not think Robert played basketball well.
②  He had not thought Robert could play so wonderfully.
③  He did not want to make friends with Robert..
④  He did not think Robert played basketball well.
【单选题】 阅读理解:阅读下列短文,回答文后问题,选择最佳答案Robert had just moved into the street and he felt strange that he was not wanted. He knew that perhaps the other boys were trying to get an idea of what kind of a boy he was. This did not help him to make himself less lonely. He was new and he had to be tested. Still, proving himself would not be all that easy. He did not want to run with the boys or get into something against the law to prove that he was strong. No! He must show what he was made of in a more helpful way. That’s when he got the idea.The next day was Saturday. He knew that most of the boys would be down on the playground and choose up sides for the Saturday game. Robert knew he could play well and that just might be enough to prove he was strong, and to make friends with them. He arrived early and did his step exercises. He shot the ball several times and did some other exercises—the most difficult and most wonderful in basketball. Then the boys came. Robert went through what he had done before the game and showed what he could do. No one said a word. The boys just looked at each other and thought about it. In the end, when it was all over, the biggest of the group just smiled and shook his head. Robert knew he had made it.3.When did Robert decide to prove himself by playing basketball?
①  After he had thought about the other two ways mentioned in paragraph one.
②  Long before he moved into the street.
③  When the other boys came down to the playground.
④  As soon as he showed what he was made of in front of the other boys.
【单选题】 The reason why he didn’t take the exam was _____ he had an accident on his way to the school.
①  because
②  because of
③  that
④  due to
【单选题】 “ Has he seen this film ? ” “Yes. He______ it several days ago.”
①  saw
②  has seen
③  had seen
④  was seeing
随机题目
【单选题】 数据库管理系统能实现对数据库中数据的查询.插入.修改和删除等操作,这种功能称为( )。
①  A.数据定义功能
②  B.数据管理功能
③  C.数据操纵功能
④  D.数据控制功能
【单选题】 关系R中的某一属性组的值能够唯一地标识一个元组,而其子集不能,则称该属性组为关系R的( )。
①  A.主属性
②  B.主码
③  C.候选码
④  D.超码
【单选题】 数据库中存储的是( )
①  A.数据
②  B.数据以及数据之间的联系
③  C.数据模型
④  D.信息
【单选题】 数据库与文件系统的根本区别在于( )
①  A.提高了系统效率
②  B.方便了用户使用
③  C.数据的结构化
④  D.节省了存储空间
【判断题】 文件系统要负责文件存储空间的管理,但不能完成文件名到物理地址的转换。
①  正确
②  错误
【判断题】 在文件系统的支持下,用户需要知道文件存放的物理地址。
①  正确
②  错误
【判断题】 采用了二级目录结构后,可以允许不同用户在为各自的文件命名时,不必考虑重名问题,即使取了相同的名字也不会出错。
①  正确
②  错误
【判断题】 顺序结构是一种逻辑记录顺序和物理块的顺序相一致的文件结构。
①  正确
②  错误
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