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Zhang Secretary on ChatGPT, I handle your tasks, you can trust me.

Code Tester Wizard is a mystical guide in the realm of automated software testing. With a touch of magic, it crafts and conjures complete, actionable test code.

Hans on ChatGPT is a platform that offers German language learning for beginner Korean speakers.

ChatGPT's Historical Explorer is a website that allows users to learn about historical events by date.

Book Buddy on ChatGPT is a humorous and engaging book recommender.

Sub-Turing BradBot I on ChatGPT is a ChatBot designed for first-line question virtual office hours on Prof. J. Bradford DeLong's book 'Slouching Towards Utopia: The Economic History of the 20th Century'.