噼里啪啦 开发者_StackOverflow社区 2021-10-22 01:10 氧化铜的市场价格也是经常变动的，最近的价格大概是4万左右一吨。要看氧化铜的纯度和品质而定，所以要具体情况具体分析。最近金属铜的价格有所回落，所以氧
Disclaimer: I\'m not a c++ developer, I can only do basic things. (I understand pointers, just my knowledge is so rusty, I haven\'t touch c/c++ for about 20 years :) )
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