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【简答题】
人类获得性免疫缺陷综合征是一种由人类免疫缺陷病毒（HIV）感染引起的慢性传染性疾病。目前作为诊断的检测手段主要包括抗HIV病毒抗体检测、病毒培养、核酸检测和抗原检测，各种方法都有自己的优缺点。疑有HIV感染，初筛检查应检测A、HIV P120抗体和P24抗体 B、HIV P120抗体 C、抗原检测 D、HIV P18抗体 E、病毒培养 确诊HIV感染应检查A、HIV P120抗体和P24抗体 B、HIV P120抗体 C、P24抗体 D、HIV P18抗体 E、免疫印迹法
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【单选题】The main difference between the imposition of tariffs and the granting of licences in the case of import quotas is the increase in tariffs
A.
Consumer surplus
B.
producer surplus
C.
The international trade
D.
government revenue
【简答题】中国第一个荣获女子世界冠军(棋后)的是谁?A. 谢军 B. 诸宸 C. 侯逸凡 D. 许昱华
【单选题】Tariffs and import quotas tend to:
A.
increase the quantity of imports as compared to free trade.
B.
generate government revenue.
C.
increase consumer surplus as compared to free trade.
D.
reduce total surplus as compared to free trade.
【单选题】Tariffs and import quotas differ in that
A.
one is a form of trade restriction, while the other is not.
B.
one is a tax, while the other is a limit.
C.
one is imposed by the government, while the other is imposed by the private sector.
D.
one is legal, while the other is not.
【单选题】Like tariffs, quotas tend to lead to
A.
higher prices and reduced imports.
B.
increased government revenue.
C.
increased consumer surplus.
D.
All of the above.
【单选题】Both tariffs and import quotas
A.
increase the quantity of imports and raise the domestic price of the good.
B.
increase the quantity of imports and lower the domestic price of the good.
C.
decrease the quantity of imports and raise the domestic price of the good.
D.
decrease the quantity of imports and lower the domestic price of the good.
【单选题】An important difference between tariffs and quotas is that tariffs____________.
A.
raise the price of the good.
B.
generate tax revenue for the government.
C.
stimulate international trade.
D.
help domestic producers.
【简答题】解释总供给曲线三个区域的含义。
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