Agricultural chemicals

Agricultural chemicals

Includes chemicals designed for agricultural use for protection of crops from fungus and insects, as well as for the growth and protection of plants.

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錢

Economy; Economics

使世界運轉，並有多種形式，從殼和塑膠或紙金幣的珠子。比易貨中啟用一個經濟體系的稀缺資源，有效分配好。錢有三項主要優點： *作為交換媒介，買家可以交給賣方支付的貨物和服務； *作為一個單元的帳戶，可以使用它添加了蘋果和橘子中一些常見的價值； *作為存儲的值，它可用於傳輸到未來的購買力。A 農民交流水果的錢可以在將來用那筆錢；如果他保留著他的水果，它可 ...