现象之间相互依存关系的程度越高,则相关系数值()
A、越接近于∞
B、越接近于-1
C、越接近于1
D、越接近于-1或1
参考答案:D
下列常用词语的字音完全正确的一项是
A.针砭biān 纰bǐ缪miù 翩piān跹xiān
B.粗糙cāo 回溯sù 内疚jiù
C.绦虫tāo 砧板zhēn 恸哭tòng
D.粗犷guǎng 毁谤huǐ 讷言nè
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.