在一些农村地区,由于青壮年劳动力大量出外,专门从事粮食生产的多为镇守老人,于是有人就利用镇守老人文化程度不低、维权意识严重不足等特点,通过制作假公司网页、高薪聘用销售代表、给经销商高额贿款等手段,把化肥兑水做成...
Scientists from China, Sweden and the United States have developed a high-yielding rice that can reduce methane emissions, a major greenhouse gas blamed for global warming, from paddies。来自中国、瑞典和美国的科学家研发了一种新型高产水稻，同时还能增加甲烷的获释量。...