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【单选题】
氯丙嗪引起低血压状态时,用A.
多巴胺
B.
肾上腺素
C.
去甲肾上腺素
D.
肾上腺素
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举一反三
【单选题】Which of the following is false about quantity discounts?
A.
Quantity discounts are a form of price discrimination which allow a seller to charge a higher price for the first unit than for later units.
B.
Quantity discounts allow price discriminating producers to extract additional consumer surplus from customers.
C.
Price discrimination, such as offering quantity discounts, can result in a greater output, and thus greater consumer surplus and producer surplus, by a monopolist than if price discrimination was not possible.
D.
Quantity discounts benefit those customers who would not buy any of a monopolist's product at the price that the monopolist would charge if it could not price discriminate.
【单选题】To get people buying, many stores are running their usual sales offering discounts(打折)as high as 50 percent, hoping that shoppers don't repeat past habits by waiting for post-Christmas .
A.
bargains
B.
fancies
C.
decorations
D.
expectations
【简答题】人体最大的解毒器官是（ ）。
【简答题】目前,我国常见的国产轿车均采用( )。
【简答题】人体最大的解毒器官是（ ）。
【简答题】介副词填空 After the earthquake, many stores have been reaching ______ the poor by offering food and clothing at big discounts.
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