如果结果不匹配，请 
更多“布鲁塞尔机场的三字代码为LAX。()”相关的问题
A.ICAO
B.IATA
C.CAAC
D.CCAR
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？
10种股票2005年3月20日的收盘价格如表7-4所示：
表7-4
2005年3月20日10种股票的收盘价格表
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采用AVERAGE函数求算术平均值。
The main idea, of this passage is ______.
A．traffic accidents are mainly caused by motorists
B．thousands of people the world over are killed each year
C．the laws of some countries about driving are too lax
D．only stricter traffic laws, can prevent accidents
