单选题
What's the main reason for big cities to build their own recycling plants?
A、
To deal with wastes in a better way.
B、
To protect the environment from pollution.
C、
To get raw materials locally.
D、
To get big profits from those plants.
【正确答案】
A
【答案解析】
[解析] 文章开头就提到了“the recycling of waste”，通篇都与此紧密联系，故选A。
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