试题与答案

下列关于相关系数的说法正确的有()。A.一般而言,多数证券的报酬率趋于同向变动,因此

题型:多项选择题

题目:

下列关于相关系数的说法正确的有()。

A.一般而言,多数证券的报酬率趋于同向变动,因此,两种证券之间的相关系数多为小于1的正值

B.当相关系数为+1时,表示一种证券报酬率的增长总是与另一种证券报酬率的增长成比例

C.当相关系数为-1时,表示一种证券报酬率的增长总是与另一种证券报酬率的减少成比例

D.当相关系数为0时,表示缺乏相关性,每种证券的报酬率相对于另外的证券的报酬率独立变动

答案:

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题型:阅读理解

Mr. Jackson lived in the center of London but he had a hotel near the airport. There a lot of foreigners stayed for night. He didn’t know any other language but English and he found it difficult for him to understand the foreign visitors. Sometimes he had to use the gesture to talk with them, and tried his best to make himself understood. But he was often misunderstood (误解) and it brought him a lot of trouble. A friend of his who taught a few foreign languages in a university would teach him. He was happy and studied hard. At first he learned some, but soon he found it wasn’t very easy to remember the words and expressions. His friend advised him to write down the useful expressions in his notebook so that he could use them when necessary. He did as he was told. He found it helpful for him to do so.

One evening there were plenty of people in the dining-room. They were all busy eating something except a Japanese. He was wandering (徘徊) there and waiting for his wife who was dressing herself up upstairs. Mr. Jackson thought to himself, “ The man wants to eat something but he doesn’t know any English. Let me help him.”

As he knew only a little Japanese, he had to bring out his notebook and showed it to the man, pointing to the sentence “I’m hungry.”

The Japanese had a look at it and gave him two pounds and left.

小题1:Mr. Jackson knew only English because        .

A.he was an English student

B.he had never been abroad

C.he couldn’t learn by himself

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A.he wanted the foreign visitors to understand him

B.he wanted to learn the foreign languages from the visitors

C.he hoped to know the foreign visitors’ custom

D.he hoped more foreign visitors would stay for night in his hotel小题3:As not all foreign visitors understand his gesture, sometimes Mr. Jackson         to communicate with them.

A.succeeded

B.lost heart

C.failed

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B.Mr. Jackson thought the Japanese was not hungry

C.Mr. Jackson knew the Japanese was waiting for his wife.

D.Mr. Jackson was sure the Japanese couldn’t speak English小题5: The Japanese thought        , so he gave him two pounds.

A.Mr. Jackson was a beggar.

B.Mr. Jackson was a translator.

C.Mr. Jackson could help him.

D.Mr. Jackson could ring his wife up.

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