Based on Unit 2 Text A: According to the passage, the title “From Trash to Treasure”

A.medium of exchange;store of value

B.medium of exchange;unit of account

C.store of value;medium of exchange

D.store of value;unit of account

A.for yourself

B.by yourself

C.to yourself

D.in yourself

Write a note based on the given facts

留言者:2年级1班学生

时间:11月6日

对象:李教授

内容:我们拟于11月22日(周四)下午2点在502教室开-一个研讨会,题为“互联网对

教育有何影响”。您可以届时拨冗参加吗？我们十分期待您的参与!

l to the stock account of a material.What prerequisites must be met to achieve this？ There are 2 correct answers to this question.()

A.Stock of the affected material must be available at least in the invoiced quantity

B.In the invoice header, you have to enter the stock account to which the unplanned delivery costs are to be posted

C.The material affected must be valuated based on the moving average price

D.The material affected must be valuated based on the standard price

你在一个有三个消费者组成的市场上销售产品1和产品2。三个消费者的保留价格如下:

各产品的单位成本为30美元。

(1)对分开销售两种产品、纯捆绑销售和混合捆绑销售，分别计算价格和利润。

(2)哪种策略是最有利可图的？为什么？

You are selling two gods, I and 2, to a market consisting of three consumers with reservation prices as follows :

The unit cost of each product is $ 20.

a. Compute the optimal prices and profits for (i) selling the goods separately, (ii) pure bundling, and (iii) mixed bundling.

b. Which strategy is most profitable？ Why？

请选择正确的选项，将文字信息写入到文本文件lianxi.txt中： Font font1; int i; void setup（){

size(400,300); background(0); font1=createFont("黑书",40); String[] str1=new String[2]; str1[0]="飞来山上千寻塔,"; str1[1]="闻说鸡鸣见日升。"; //输出到文件“lianxi.txt”中 }

A、saveStrings("lianxi.txt",str1);

B、saveStrings(str1,"lianxi.txt");

C、text(str1,"lianxi.txt");

D、text("lianxi.txt",str1);

率是75美元/小时。

(1)找出利润最大化时的L数量。

(2)找出利润最大化时的q数量。

(3)最大化利润是多少？

(4)假设现在每单位的产出要征税30美元，而每小时的劳动能得到15美元的补助。并且假设企业是价格接受者，所以产品价格保持150美元不变。找出新的利润最大化的L、q和利润。

(5)假设企业要为利润支付20%的税额。找出新的利润最大化的L、q和利润。

A firm uses a single input, labor, to produce output q according to the production function q =8√L. The commodity sells for S 150 per unit and the wage rule is $ 75 per hour.

a. Find the profit - maximizing quantity of L.

b. Find the profit - maximizing quantity of q.

c. What is the maximum profit？

d. Suppose now that the firm is taxed $ 30 per unit of output and that the wage rate is subsidized at a rate of $ 15 per hour. Assume that the firm is a price taker, so the price of the product remains at $ 150. Find the new profit - maximizing levels of L, q, and profit.

e. Now suppose that the firm is required to pay a 20 percent lax on its profit. Find the new profit - maximizing levels of L, q, and profit.

一家企业的固定生产成本为5000美元，边际生产成本为常数，为500美元/单位产品。（1)企业的总成本函

一家企业的固定生产成本为5000美元，边际生产成本为常数，为500美元/单位产品。

(1)企业的总成本函数是什么？平均成本呢？

(2)如果企业想使其平均总成本最低，它应该选择非常大的产量还是比较小的产量？解释你的结论。

A firm has a fixed production cost of $ 5000 and a constant marginal cost of production of S 500 per unit produced.

a. What is the firm' s total cost function？ Average cost？

b. If the firm wanted to minimize the average total cost，would it choose to be very large or very small？ Explain.

对竞争性行业中的一个厂商的售价为5美元的产品征收销售税为1美元。（1)税收是如何影响厂商的成

对竞争性行业中的一个厂商的售价为5美元的产品征收销售税为1美元。

(1)税收是如何影响厂商的成本曲线的？

(2)厂商的价格、产出、利润会发生哪些变化？

(3)是否会有厂商进入或退出该行业？

A sales tax of S 1 per unit of output is placed on a particular firm whose product sells for $5 in a competitive industry with many firms.

a. How will this lax affect the cost curves for the firm？

b. What will happen to the firm' s price, output, and profit？

c. Will there be entry or exit in the industry？

A.degree

B.calorie

C.gallon

D.liter

A.united

B.unified

C.unit

D.unifying