单选题：The author uses the example of middleman to show .

题目内容：
The author uses the example of middleman to show . A．market transactions are important in different countries
B．dealers are needed in doing business
C．middlemen can play great role in different transactions and different countries
D．middlemen in different countries have different actions in business

参考答案：
答案解析：

根据下面资料，回答题 A. The first and more important is the consumer'

根据下面资料，回答题 A. The first and more important is the consumer' s growing preferenc

分类：公共英语四级  题型：单选题
查看答案

When did the man buy the radio?

When did the man buy the radio? A．Last week. B．The day before yesterday. C．Yeste

分类：公共英语四级  题型：单选题
查看答案

在一定的温度和压强下。20L气体X2和l0L气体Y2若完全化合生成20L某种气体该气体的分子式是（　　）

在一定的温度和压强下。20L气体X2和l0L气体Y2若完全化合生成20L某种气体该气体的分子式是（　　）A．X2Y B．XY2 C．XY D．X2Y2

分类：公共英语四级  题型：单选题
查看答案