方法：
1、以武漢市為例，百度搜索武漢市食品藥品監督管理局（網址含有.gov.cn的為政府官方網站）
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2、點擊官網右側數據查詢
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3、左側列表中選擇食品經營企業
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4、在兩個方框中分別填寫企業名稱和許可證號
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5、點擊屏幕中間的搜索即可完成查詢
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