Emerging portable testing methods include X-ray fluorescence analysers for turmeric and handheld DNA kits to test olive oil.
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A 38-year-old man has been arrested after the statue of Winston Churchill outside the Houses of Parliament was defaced with graffiti calling the former prime minister a “Zionist war criminal”.
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这种方法通过类型别名和转换器封装了平台差异，避免了平台侧重复编写转换逻辑。