资料显示，山东大厂白从原来的4.50元/只出现连续上涨后到3月6日的价格已为6.60元/只，涨幅接近50%，并有望继续增长。种禽企业也迎来了久违的好日子，开启了数钱模式。
I want to store some user preferencesWould Enum be a good datastructure to store 开发者_C百科them? If so, how do I do it? This is the final usage of the datastructure.
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