信用卡的不稳定期 (1)
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军事:加沙遭遇四十年来最严重的人道主义危机
军事:加沙遭遇四十年来最严重的人道主义危机Gaza is facing its worst humanitarian crisis in more than 40 years. A new report by aid agencies and humanitarian groups says things haven’t been this ...
冷藏食品的一些小贴士(1)
食物冷藏的一些方法。Hints:evaporative cooler organism damageBefore refrigerators were invented, the next best thing was an ice box. But another way to keep food fresh is to use an evaporative coo...
让机器人帮你挤牛奶 (1)
科技正在使一些牛奶场主的生活变得更加轻松。今天一起看下他们用机器人系统来挤奶。Technology is making life easier for some dairy farmers. They use robotic systems to milk their cows. These systems a...
安眠药的潜在危害(1)
科学家发现安眠药除了让人进入睡眠,还有一些潜在的危害The United States Food and Drug Administration has ordered companies to place strong new warnings on thirteen drugs that treat sleep disorders....