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【简答题】
信息系统中数据库的数据模型有________。 A. 网状模型、层次模型和关系模型B.数字型、字母型和日期型C.数学模型、概念模型和逻辑模型D.用户模型、概念模型和存储模型
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【单选题】下列选项中,正确表述认识客体的含义的是( )
A.
认识的客体是主体创造出来的对象
B.
认识的客体是外部自然界
C.
认识的客体是主体实践和认识的对象
D.
认识的客体是客观存在的事物
【单选题】What does this passage mainly talk about?
A.
How to establish a company.
B.
How to strengthen a marketing program.
C.
How to analyze product sales.
D.
How to keep self-esteem.
【单选题】下列选项中,正确表述认识客体的含义的是
A.
认识的客体是主体创造出来的对象
B.
认识的客体是外部自然界
C.
认识的客体是客观存在的事物
D.
认识的客体 是主体实践和认识的对象
【单选题】How did the scientists establish the existence of the planets?
A.
They studied the gravitation in the appearance of the parent stars.
B.
They were able to see the planets with a telescope.
C.
They compared the parent stars to the Sun.
D.
They sent astronauts on a mission into space.
【单选题】Which of the following is the most suitable title for this passage?
A.
How to Establish the Feelings of Trust and Get Rid of Paranoia
B.
You Are Where You Live: Dangerous Neighborhoods Lead to Paranoia
C.
Closely Bonded; Neighborhood Safety and Resident Income
D.
Born to Win: Neighborhood Environment Is the Key to Lead a Good Life
【单选题】How have electronic links benefited professionals and managers?
A.
They can establish links with their business associates.
B.
They do not have to make any business trips.
C.
They do not have to work in their offices anymore.
D.
They can improve their work efficiency.
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