∵双曲线y=2k-1x的图象经过第二、四象限，
∴2k-1＜0，
∴k＜12，
故答案为：k＜12．
政府投资应选择使边际人均投资额最大化的投资项目，该标准是( )。
A．资本—产出最大化标准
B．资本—劳动力最大化标准
C．就业创造标准
D．稀缺要素标准
Which of the following statements regarding a monopolist is most accurate （）
A. A monopolist will maximize the average profit per unit sold.
B. If a firm has a monopoly, it will always be able to earn economic profits.
C. A monopolist, like any other profit-maximizing firm, will sell at the output level where marginal revenue equals marginal cost.
