Emerging portable testing methods include X-ray fluorescence analysers for turmeric and handheld DNA kits to test olive oil.
2024年12月20日 星期五 新京报
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A leaked draft of a five-year memorandum of understanding (MOU) between the two countries, seen by the Guardian, reveals that Zambia may accept terms worse than health financing agreements the US has reached with 16 other African countries.
南方周末：你在比赛期间，会关注其他选手的表现吗？