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【单选题】
在浏览器输入网址后,按下哪个键才能访问网页?A.
空格键
B.
退格键
C.
回车键
D.
Ctrl键
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新浪微博
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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.
【简答题】技术创新的类型有哪些？
【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】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.
【简答题】组句子 1. his is book this ___________________. 2. that ruler your is ___________________?
【简答题】解下列方程组、不等式组： （1） ； （2）﹣3≤ <1．
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