皮皮学,免费搜题
登录
搜题
【单选题】
磁感线上任意点的 ( )方向,就是该点的磁场方向
A.
指向 N极的
B.
切线
C.
直线
D.
指向 S极的
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】For a firm in perfect competition, the profit maximizing output is 200 tons at a price of $600/ton. If the firm is minimizing the cost of resources, it is least likely that the:
A.
marginal product per unit of labor is 1/3 ton.
B.
marginal revenue product of capital is equal to the price of a unit of capital.
C.
ratio of the marginal output per labor unit to labor units employed is at a maximum.
【单选题】For a profit-maximizing firm, the price level equals its marginal revenue (MR) when ______.
A.
in an oligopolistic market.
B.
in a monopolistic situation.
C.
in a perfectly competitive market.
D.
sales rise with the increase in price level.
【判断题】白口铸铁属于有色金属。
A.
正确
B.
错误
【判断题】白口铸铁属于有色金属。
A.
正确
B.
错误
【判断题】电偶序和电动序反映的是腐蚀倾向,不能表示实际的腐蚀速度。
A.
正确
B.
错误
【单选题】For a profit-maximizing monopolist,
A.
P > MR = MC.
B.
P = MR = M
【单选题】For a profit maximizing monopolist, price:
A.
equals marginal revenue.
B.
is less than marginal revenue.
C.
is greater than marginal revenue.
D.
can be greater than or less than marginal revenue.
【单选题】The profit maximizing output level is ___
A.
MC>MR
B.
MC=MR
C.
MC
D.
MC
【判断题】字正腔圆”一词中“字正”意指把生母发准确,“腔圆”意指把韵母发全、发响亮。()
A.
正确
B.
错误
【判断题】字正腔圆”一词中“字正”意指把生母发准确,“腔园”意指把韵母发全、发响亮。()
A.
正确
B.
错误
相关题目: