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【单选题】
下列关于税收法律关系的表述中,正确的是()。 『答案解析』选项A,税法是引起税收法律关系的前提条件,但税法本身并不能产生具体的税收法律关系;选项B,税收法律关系中权利主体双方法律地位平等;选项D,税收法律关系在总体上与其他法律关系一 样,权利主体、客体和法律关系内容三方面构成的。
A.
税法是引起法律关系的前提条件,税法可以产生具体的税收法律关系
B.
税收法律关系中权利主体双方法律地位并不平等,双方的权利义务也不对等
C.
代表国家行使征税职责的各级国家税务机关是税收法律关系中的权利主体之一
D.
税收法律关系总体上与其他法律关系一样,权利主体、权利客体两方面构成
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【单选题】Economic models
A.
are essentially different from those used in other sciences.
B.
always use graphs.
C.
simplify reality.
D.
include all relevant facts.
【单选题】We can infer that current virtual reality devices ______.
A.
still need improving to create a perfect virtual world
B.
are already perfect to create a virtual world
C.
are unable to create a virtual world
D.
are harmful to users of virtual reality
【单选题】Traditional economic models found it hard to explain the phenomenon of .
A.
search frictions
B.
unemployment
C.
labor as commodity
D.
wage falls
【单选题】Economic models
A.
are people who act out the behavior of firms and households so that economists can study this behavior.
B.
are usually detailed replications of reality.
C.
incorporate simplifying assumptions that often contradict reality, but also help economists better understand reality.
D.
are useful to researchers but not to teachers because economic models omit many details of the real-world economy.
【单选题】Economic models
A.
cannot be useful if they are based on false assumptions.
B.
were once thought to be useful, but that is no longer true.
C.
must incorporate all aspects of the economy if those models are to be useful.
D.
can be useful, even if they are not particularly realistic.
【多选题】数据模型的结构有( )。
A.
结构化数据
B.
非结构化数据
C.
半结构化数据
D.
完全结构化数据
【单选题】电缆转弯时弯曲半径应符合规定,屏蔽4对对绞电缆的弯曲半径至少为电缆外径的( )。
A.
4倍
B.
6倍
C.
8倍
D.
10倍
【单选题】Economic models
A.
are not useful because they omit many real-world details.
B.
are usually composed of diagrams and equations.
C.
are useful because they do not omit any real-world details.
D.
contribute very little to economists’ understanding of the real world.
【单选题】Some child ren stated that they used their unsupervised free time to perfec t their athletic skills, such as playing basketball
A.
GemmaGemma spent hours trying to perfect her technique spent hours trying to perfect her technique
B.
The treaty is far from perfect, but it is clearly the way forward.
C.
In English, the perfect is formed with "have" and the past participle of the verb.
【多选题】数据模型的结构有__________。
A.
结构化数据
B.
非结构化数据
C.
半结构化数据
D.
完全无结构化数据
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