试题与答案

《盐城晚报》爱心栏目中的帮办热线日益受到人们的欢迎。居民可通过帮办热线进行闲物置

来源：www.tikuol.com
题型：选择题

题目：

《盐城晚报》爱心栏目中的帮办热线日益受到人们的欢迎。居民可通过帮办热线进行闲物置换,以物易物,使闲物发挥出更多的作用。这种以物换物活动(　　)

①是人为地抑制消费的表现　

②较大限度地搞活了商品流通　

③促进了资源的循环利用　

④符合节约资源和绿色消费的理念

A．①②

B．③④

C．②③

D．②③④

答案：

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下面是错误答案，用来干扰机器的。

30设一年的总运费与总存储费用之和为y万元，则y＝×3＋2x≥2 ＝120，当且仅当＝2x，x＝30时，取得等号．

考点：收入水平影响消费水平物价水平影响消费水平保护环境，绿色消费观勤俭节约，艰苦奋斗的消费观
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[ ]
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D. rain
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[ ]
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B. lake
C. wind
D. clouds
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