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.
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First Quarter - Half of the Moon is lit on the right side. It looks like a half-Moon.
[6] D. Vanderhaeghe & V. Ostromoukhov: “Polyomino-Based Digital Halftoning” (2008). ↑，详情可参考爱思助手下载最新版本
of the universe.↩
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