皮皮学，免费搜题
登录
搜题
【单选题】
在数据库系统中，用于对客观世界中复杂事物的结构及它们之间的联系进行描述的是A.
概念数据模型
B.
逻辑数据模型
C.
物理数据模型
D.
关系数据模型
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】What factors will affect the authority of the sources?
A.
the author
B.
the sponsor
C.
the publisher
D.
the reader
【简答题】When you want to sell the house, what will affect the price? ______________________ of the home.
【单选题】What will affect the success of the new therapy?
A.
a) how well the tissue is printed
B.
b) the health of patients
C.
c) the quality of the printer
D.
d) genes
【简答题】赤潮的形成主要与下列哪种因素的关系最为密切？（ ）
【多选题】No one is exempt from achieving the status of old at some point. What will affect the individual?
A.
A perception of any action, or institutional structure.
B.
The individual may be an ageist with respect to others.
C.
The individual may be an ageist with respect to self.
D.
The concept of agedness is changing gradually.
【简答题】According to the passage, what will affect the phenomena of population?
【多选题】No one is exempt from achieving the status of old at some point. What will affect the individual?[Clink on 2 answers. ]
A.
A perception of any action, or institutional structure.
B.
The individuals state of being an ageist with respect to others.
C.
The individuals state of being an ageist with respect to self.
D.
one's perception of stereotypes.
相关题目：