“特别是在难以大规模种植主粮作物的西南山区，马铃薯的主产区可以变成主粮产区，这相当于我国增加了几亿亩的主粮耕地。”吴奇表示，“土豆米”的产业化发展不仅可以为居民膳食提供多元和健康的选择，更对保障粮食安全具有重要的战略意义。

LUANDA, June 19 (Xinhua) -- Five African countries have signed the "Luanda Agreement" to defend and promote natural diamonds, pledging to contribute 1 percent of their annual sales revenue to fund a ...

Israel carried out fresh waves of airstrikes in Iran on Wednesday, with the Israeli military saying it was targeting ...