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【单选题】
在OSI参考模型中,与TCP/IP参考模型的网络接口层对应的是 __ 。A.
网络层
B.
应用层
C.
传输层
D.
物理层和数据链路层
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反馈参考答案：
举一反三
【单选题】Scarcity is a condition that exists when
A.
there is a fixed supply of resources.
B.
there is a large demand for a product.
C.
resources are not able to meet the entire demand for a product.
D.
All of the above.
【单选题】As described in Okin’s chapter, traditionally, what are the two conditions under which justice becomes an important ideal or goal?
A.
When there is love within the family, and when there are sufficient goods to share.
B.
Scarcity of goods, and lack of a common aim or goal.
C.
Whenever any kind of inequality or need exists.
D.
The demands of justice are always present because God commands that all people are treated equally.
【单选题】Scarcity exists when
A.
there is less than an infinite amount of a resource or good.
B.
there is less of a good or resource available than people wish to have.
C.
society can meet the wants of every individual.
D.
the price of a good rises.
【单选题】What must follow when scarcity exists?
A.
Consumers have to make choices.
B.
Governments are unable to supply public goods.
C.
Producers must be misallocating resources.
D.
Workers must be earning low wages.
【单选题】Scarcity exists when:
A.
individuals can have more of one good but only at the expense of another.
B.
a choice must be made among two or more alternatives and when individuals can have more of one good but only at the expense of another.
C.
individuals can have more of any good.
D.
a choice must be made among two or more alternatives.
【简答题】解下列方程组、不等式组： （1） ； （2）﹣3≤ <1．
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