题目内容

常见扫描仪的品牌有很多，Epson也是其中之一。( )

A. 对
B. 错

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A、B两个项目可能的收益率和发生的概率如下表所示：经济形势概率 A项目收益率 B项目收益率差 0.1 -3% 2% 稳定 0.3 3% 4% 适度增长 0.4 7% 10% 繁荣 0.2 10% 20% [要求] (1)计算A、B项目的期望收益率； (2)计算A、B项目的标准离差； (3)计算A、B项目的标准离差率。

Questions 1 to 5 are based on a interview. At the end of the conversation you will be given 10 seconds to answer each of the following the questions. Now listen to the interview. Debbie Milk said that TV is a medium ______.

A. that gives kids a lot of good information
B. that teaches kids to be passive
C. that gets kids so excited they literally come out of their chairs
D. that gets kids so fascinated they are concentrated

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一份问卷的主体是该问卷的核心。( )

A. 对
B. 错

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Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Jim Thayer believes that when you work for a small business which is non-union, you ______.

A. find that your freedom is greatly reduced
B. have a higher degree of freedom
C. lose your freedom
D. become more dependent

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常见扫描仪的品牌有很多，Epson也是其中之一。( )

A. 对 B. 错

Questions 1 to 5 are based on a interview. At the end of the conversation you will be given 10 seconds to answer each of the following the questions. Now listen to the interview. Debbie Milk said that TV is a medium ______.

一份问卷的主体是该问卷的核心。( )

Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview. Jim Thayer believes that when you work for a small business which is non-union, you ______.

A. 对
B. 错