11月中旬以来，黄金的期货和现货价格均实现双面上涨，12月4日，COMEX黄金期货早间一度站上2150美元/盎司关口，现货黄金一度涨至2144美元/盎司，均续刷历史新高。
Im not sure about what authentification method I should use for my webservice. I\'ve searched on SO, and found nothing that helped me.
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