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食物落地后只要在3秒钟内捡起,就可以安全食用,因为这时食物尚未受到细菌污染。英国研究人员试图借助实验验证这一说法,实验显示,水果干和煮熟的通心粉掉落地上3秒钟即检测出克
Once the food has landed within 3 seconds, it can be safely consumed because the food has not yet been contaminated with bacteria. British researchers tried to prove this by means of experiments. Experiments show that the dried and cooked macaroni dropped 3 seconds on the ground to detect gram