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3It wasn’t the first time that nations at war turned to seaweed. During the First World War, the U.S. relied on the giant kelp seaweed (Macrocystis) to boost production of potash (a fertilizer produced in Germany), gunpowder, and acetone.。业内人士推荐im钱包官方下载作为进阶阅读
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UK government staff have been withdrawn from Iran