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符號函數（Sign function，簡稱sgn）是一個邏輯函數，用以判斷實數的正負號。為避免和英文讀音相似的正弦函數（sine）混淆，它亦稱為Signum function。其定義為： = {: <: =: >

《广告时代》（英語： Ad Age ）是一家位于美国的杂志公司，提供新闻、分析、数据营销以及媒体信息。2017年以前，大众更熟悉其英文名"Advertising Age"。 1930年，该杂志於芝加哥創刊，起初是以报纸的形式發行 [1] 。时至今日，该杂志的内容以多种形式出现，包括 ...

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2023年9月12日 · Introducing Ad Age Agency Report 2024 By Ad Age Staff - 8 months 3 weeks ago Cannes Lions 2024 takeaways and insights from ad executives

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Ad Age’s Post Ad Age 1,142,639 followers 2w Report this post Why your Gen Z employees are the most reliable, authentic creators for your brand, and how amplifying their employee-generated ...

The trend of disbelieving popular young people coming out in the media only works to perpetuate heterocentric ideas around sexuality. Coming out is hard enough for young people (or people of any age), but it is made even more difficult when fans of queer celebrities question their coming-out process or demand more proof.