【单选题】If firm1 has reduced costs by developing technologies, firm1 has increased costs for other reasons, and eventually the marginal costs of both companies is $4. Both companies have the same cost mix (la...
【单选题】碘在水中溶解度为1:2950,想制备5%碘的水溶液,通常可采用()
【单选题】If the marginal utility per dollar spent on Good X exceeds that of Good Y, the utility-maximizing consumer should:
A.
buy less of Good X and more of Good Y.
B.
buy less of Good Y and more of Good X.
C.
buy more of both Good X and Good Y.
D.
buy less of both Good X and Good Y.
【单选题】A producer is hiring 20 units of labor and 6 units of capital (bundle A). The price of labor is $10, the price of capital is $2, and at A, the marginal products of labor and capital are both equal to...
A.
cost remains constant and output increases by 20 units
B.
cost remains constant and output decreases by 20 units
C.
output remains constant and cost increases by $8
D.
output remains constant and cost decreases by $8.
【单选题】区 分 渗 出 液 和 漏 出 液 的 最 主 要 依 据 是