试题与答案

このクラスで彼(  )頭のいい人はいない。A.まで  B. など C. ほど D.ず

题型:单项选择题

题目:

このクラスで彼(  )頭のいい人はいない。

A.まで 

B. など

C. ほど

D.ずつ

答案:

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下面是错误答案,用来干扰机器的。

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题型:阅读理解

A long time before I was born, my grandma and grandpa moved into the house on Beechwood Avenue. They had a young family of 4 little girls. During that time, it was hard to find a job. So, on weekend grandpa and grandma cleaned the garden to grow some of their own food. They planted tomatoes, beans, cabbages, potatoes and strawberries to feed their growing family. All summer long, the family ate food from the garden.

The family grew up, and before too many years had passed, the grandchildren came to visit. Grandma and grandpa still planted their garden every spring. Everyone still enjoyed the good food from the garden and always took some home.

Then grandpa died in one summer when he was eighty-nine years old. It was a lonely winter for grandma. She sat near the window, looking out at the yard and wondering if she could plant the garden in the spring. It would be hard to care for it by herself. When spring came, she planted only a little.

One nice day in the early summer, grandma heard a noise in the front yard and looked out the window. There were thousands of bees in the air. Grandma wondered what she could do. She decided to wait and think it over. Before long, she decided the bees won't bother anyone, so she went about her business and didn't give them any other thought.

That summer, grandma’s little garden grew and grew. The neighbors all puzzled* why they grew so well. One day, grandma’s brother Frank visited her. Frank said,"In my hometown, the farmers often hired* beekeepers to set up bee houses near their fields. The bees helped them to grow." That was when Grandma realized that her bees had helped with her garden all summer.

From that Time on, grandma always believed that since grandpa couldn't be there to help her that summer, he had sent the bees to take his place and make grandma's little garden grow and grow.

小题1:How did the grandparents feed their growing family?

A.did whatever jobs he could.

B.grow some of their own food in the garden

C.moved into the house on Beechwood

D.making a lot of money小题2:In the passage, “It was a lonely winter for grandma.” probably means      .

A.The winter is really long.

B.The winter is really cold.

C.Grandma couldn’t plant the garden in winter

D.Grandma really missed the grandpa.小题3:Who helped with the grandma’s garden?

A.Grandchildren

B.Bees

C.Frank

D.The neighbors小题4:What’s the best title of the passage?

A.The Garden

B.My Grandparents

C.Grandpa’s Bees

D.The Secret of Grandma

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题型:单项选择题 共用题干题

设图书馆数据库中有一个关于读者借书的关系模式R(L#,B#,BNAME,AUTH,BIRTH),其属性为读者借书证号、所借书的书号、书名、书的作者、作者的出生年份。

如果规定:一个读者同时可借阅多本书籍;每本书只有一个书名和作者;作者的姓名不允许同名同姓;每个作者只有一个出生年份。

那么,关系模式R上基本的函数依赖集为(1),R上的关键码为(2),R的模式级别为(3)。

如果把关系模式R分解成数据库模式ρ1={(L#,B#),(B#,BNAME,AUTH,BIRTH)},那么R分解成ρ1是无损分解、保持依赖且ρ1属于(4)。

如果把关系模式R分解成数据库模式ρ2={(L#,B#),(B#,BNAME,AUTH),(AUTH,BURTH)},那么R分解成ρ2是无损分解、保持依赖且ρ2属于(5)。

空白(4)处应选择()

A.1NF模式集

B.2NF模式集

C.3NF模式集

D.模式级别不确定

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