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【单选题】
数据模型是对实际事物的数据特征进行抽象来描述事物及事物之间的运算规律的。数据模型主要有关系模型、层次模型和( )A.
网状模型
B.
E-R模型
C.
树状模型
D.
实体模型
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【单选题】Why do they use real roses according to Laura?
A.
Real roses are more fragrant.
B.
Real roses can show their social status.
C.
Real roses are fresh things.
D.
Real roses can better show their love.
【单选题】According to Saussure,______refers to the real utterances produced by real people in real situations.
A.
performance
B.
langue
C.
parole
D.
competence
【单选题】Artificial intelligence can never be equal ________ . [ ]
A.
with that of us real humans
B.
to us real humans
C.
to that of us real humans
D.
with us real humans
【单选题】In the second paragraph, the word 'real' in 'real goods' could best be replaced by ______.
A.
high quality
B.
concrete
C.
utter
D.
authentic
【判断题】It is difficult to tell what's real these days, as the lines between virtual reality and real life become blurred.()
A.
正确
B.
错误
【单选题】estat hettest,iid rhs命令中
A.
使用y的拟合值进行辅助回归
B.
使用部分解释变量进行辅助回归
C.
使用方程右边的全部解释变量进行辅助回归
D.
使用y的拟合值与方程右边的全部解释变量进行辅助回归
【简答题】A．It is similar to real meat in appearance but not in taste. B．It is similar to real meat neither in appearance nor in taste. C．It is similar to real meat both in appearance and in taste. D．It is simi...
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