问题 多项选择题

贝恩依据()对不同垄断、竞争结合程度的产业的市场结构进行分类.

A.CR4值

B.CR8值

C.产业规模状况

D.HHI值

E.熵指数

答案

参考答案:A, B

材料分析题

材料一:近年来,广安市委市政府采取了一系列措施整治广安市区,市容市貌有了很大的变化,为创中国优秀旅游城市而努力。

材料二:在公共场所,常有人将废纸等杂物随手乱扔。

材料三:某校学生会准备发起争做“环保小卫士”的活动。

阅读上述材料,并联系学过的思想政治课道理,回答下列问题:

(1)你知道广安市区在环境方面出现了哪些新的变化?(写出两个实例)

                                                                                                                                                              

(2)你如何看待随手乱扔废纸等杂物的现象?

                                                                                                                                                               

                                                                                                                                                               

(3)“环境小卫士”的行为对你有何启示?

                                                                                                                                                                

                                                                                                                                                               

选择题