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【单选题】
阿司匹林用于心脑血管不良事件二级预防的适宜剂量是A.
50m／d
B.
75～150mg／d
C.
300mg／d
D.
500mg／d
E.
1500mg／d
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【判断题】If a company in a competitive market persistently pays a discriminatory wage to a certain group, it must be because the employer is a bigot.
A.
正确
B.
错误
【单选题】Beginning from a long run equilibrium in a competitive industry, if there is a substantial, permanent increase in demand for industry output:
A.
firms will enter the industry, the quantity produced will rise, and prices will end up lower than their initial long run equilibrium level.
B.
firms will enter the industry, the quantity produced will rise, and prices will end up higher than their initial long run equilibrium level.
C.
firms will enter the industry, the quantity produced will rise, and prices will end up at the same level as their initial long run equilibrium level.
D.
firms will enter the industry, the quantity produced will rise, and but without more information, we cannot know if prices will end up higher than their initial long run equilibrium level.
【单选题】If a seller in a competitive market chooses to charge more than the market price, then
A.
buyers would tend to buy more from this seller.
B.
the owners of the raw materials used in production would raise the prices for the raw materials.
C.
other sellers would also raise their price.
D.
buyers will tend to make purchases from other sellers.
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