跳出率（Bounce Rate)也被称为蹦失率，为浏览单页即退出的次数/该页总访问次数，有些也用用户

A.TV数和PV数

B.独立IP数和PV数

C.PR数和SR数

D.关键词数和跳出率

此题为判断题(对，错)。

B.出现亚马逊商城交易保障索赔的订单(FiledA-to-zClaim Rate)口出现消费者要求退货(Return Rate)

C.出现一星或两星的负面反馈(Negative Feedback Rate)

D.出现一星或两星的产品差评(Product bad review)

就下列情况，画出代表性的等产量线。每种情形的边际技术替代率怎样？

(1)一个企业可以全部采用全日制工人生产，也可采用全日制员工加兼职员工组合的方式。每当一个全日制员工离职，就必须雇佣更多的兼职员工，以保持产出不变。

(2)一个企业发现总能够用两单位劳动代替一单位资本而保持产出不变。

(3)一个企业要求两名全职工人操作工厂里的一台机器。

For each of the following examples, draw a representative isoquant. What can you say about the marginal rate of technical substitution in each case？

a A firm can hire only full - time employees to produce its output, or it can hire some combi-nation of full-time and part - time employees. For each full - time. worker let go, the firm must hire ban increasing number of temporary employees to maintain the same level of output.

b. A firm finds that it can always trade two units of labor for one unit of capital and still keep output constant.

c. A firm requires exactly two full time workers to operate each piece of machinery in the factory.

The marginal product of labor in the production of computer chips is 50 chips per hour. 'The marginal rate of technical substitution of hours of labor for hours of machine-capital is 1/4. What is the marginal product of capital？