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【单选题】
在等比数列 { an} 中,已知 ,则该数列公比为( )A.
4
B.
-4
C.
2
D.
-2
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举一反三
【单选题】For a good that is taxed, the area on the relevant supply-and-demand graph that represents government’s tax revenue is a
A.
triangle.
B.
rectangle.
C.
trapezoid (梯形).
D.
None of the above is correct; government’s tax revenue is the area between the supply and demand curves, above the horizontal axis, and below the effective price to buyers.
【简答题】The prisoner was ________ of his civil liberty for three years. A) discharged B) derived C) deprived D) dispatched
【简答题】科学思维就是( ),是现代新思维的主要特征。
【简答题】法律关系包括三个要素，即法律关系的（）、法律关系的（）和法律关系的（）。
【单选题】For a good that is taxed, the area on the relevant supply-and-demand graph that represents government’s tax revenue is
A.
smaller than the area that represents the loss of consumer surplus and producer surplus caused by the tax.
B.
bounded by the supply curve, the demand curve, the effective price paid by buyers, and the effective price received by sellers.
C.
a right triangle.
D.
a triangle, but not necessarily a right triangle.
【简答题】“同语反复”的逻辑错误是由于 A定义项中直接包含被定义项 B定义项中间接包含被定义项 C定义项的外延大于被定义项 D定义项的外延小于被定义项
【多选题】关于跨境电子商务，说法恰当的选项（ ）。
A.
（A）跨境电子商务是基于网络发展起来的
B.
（B）网络是一个没有边界的媒介体，具有全球性的特征
C.
（C）对于网络而言，传输的速度基本上与地理距离无关
D.
（D）电子商务主要采取无纸化操作的方式
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