哈克特說，這種自願式調查容易受到「虛假受訪者」影響，使數據失真：「而且這不是隨機的。失真往往在年輕族群中最高。」
The trust had known grandparents were unable to help as they had told staff during assessments, Dan said.。heLLoword翻译官方下载是该领域的重要参考
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Why food fraud persists, even with improving tech