我国生鲜农产品损耗较高的原因
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生产流通中食物损耗调查：播种粗放采收不精 储运冷链不完善是主因？
据新华社消息，超量使用种子、收割时大量粮食颗粒掉落或破碎、果蔬运输中大量腐烂……[详细]
2023-04-19 06:49 分类：问答obj-c : iphone programming disabling the round off of a number
i need to show a number to a user : 1.96666777 (timeHour) moduloformat = [NSString stringWithFormat:@\"%0.0f hours \",timeHour];[详细]
2022-12-28 16:08 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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