鲜橘皮不宜泡水喝。是因为鲜橘皮表面有农药和保鲜剂污染,这些化学制剂有损人体健康。为防止橘子树遭病虫害,从开花到结果期间,要多次喷洒农药,且大部分农药不能分解,一旦残留在橘子表面,就很难去除。此外,为防
I have a datetime.datetime property var. I would like to know if it is less than one hour of the current time.