开放作品没有金币，也没有广告。

16+ 适合16岁以上：可能包含暴力、粗口或成熟主题。

SCIENCE: Ruining Everything Since 1543 by Zach Weinersmith (SMBC), page 229. CC BY-NC 3.0.

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SCIENCE: Ruining Everything Since 1543 by Zach Weinersmith (SMBC), back cover. CC BY-NC 3.0.