第二节 完型填空
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。
It is always a little sad to say goodbye to a long-time friend you are leaving forever, a【C1】______you have spent many hours with, in all sorts of【C2】______. David didn't think I should be so【C3】______about the separation. "It's【C4】______a car," he said. "And we need a【C5】______one. "
We were standing in the hot car park outside a car dealer's office, keys to the new【C6】______in David's hand, keys to the old one in mine. David took the keys and handed them to the【C7】______. As we drove away, I【C8】______to look at my trusty friend, standing silent and alone.
As it turned out, I【C9】______the new car. It ran beautifully, all the tires were good,【C10】______I happily stopped buying gas every week. Our teenage children were【C11】______to ride around in a small green car【C12】______ a smoky van (小型客货车). It began to feel like our family's car.
Still, I【C13】______looking in the rear-view mirror (后视镜) and seeing the seats【C14】______I used to put my little children. I still thought about the family【C15】______in that car and the fun we had together.
Then one day, I happened to go to a【C16】______. I parked in a sea of vehicles (车辆). As I【C17】______through the car park on my way into the store, I saw a【C18】______blue van coming slowly toward me. A little boy and a girl looked out the window at me as I stared at them in great【C19】______. The boy smiled at me cheerfully and waved. Then, as I waved back slowly with【C20】______feelings, and then walked quickly away toward the store's entrance, I burst into tears.
【C1】
A.leader
B.customer
C.companion
D.neighbour
第1题
关系数据库规范化是为解决关系数据库中()问题而引入的。
A)减少数据操作的复杂性
B)提高查询速度
C)插入、删除和数据冗余
D)保证数据的安全性和完整性
第2题
关系模式规范化设计是为解决关系数据库中的【】问题而引入的.
A.数据冗余和操作异常
B.提高查询速度
c.减少数据操作的复杂性
D.保证数据的安全性和完整性
第4题
关系数据库规范化是为解决关系数据库中的()问题引入的。
A.插入、删除异常和数据冗余
B.提高查询速度
C.减小数据操作的复杂性
D.保证数据的安全性和完整性
第5题
引入关系数据库规范化理论是为解决关系数据库中的
A.插入、删除和数据冗余
B.提高查询速度
C.减少数据操作的复杂性
D.保证数据的安全性和完整性
第7题
关系数据规范化是为解决关系数据库中的什么问题而引入的?——
A.保证数据的安全性和完整性
B.减少数据操作的复杂性
C.插人、删除和数据冗余
D.提高查询速度
第8题
关系数据规范化是为解决关系数据库中的什么问题而引入的?______
A.保证数据的安全性和完整性
B.减少数据操作的复杂性
C.插入、删除和数据冗余
D.提高查询速度
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