报告指出，在整个现代经济史中，人类智慧一直是稀缺的投入要素。一切都能复制或替代，但唯有能够分析、决策、创造、说服、协调的「智慧」，是没法大规模复制的。
其中 Φ(x)是标准正态分布 CDF。
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Фото: Slawomir Kaminski / Agencja Wyborcza.pl / Reuters
But while group chats have exploded in popularity because of their informality, that also creates its own challenges: Discussions can veer off topic, repetitive or basic questions can irritate group members, and that viral meme you think is funny could also offend.
Input formatting choices (reversed digits, delimiters, etc.) as long as the format is fixed and doesn't encode the answer