我有九千万亿舔狗金
番茄第一帅哥
University Physics with Modern Physics (15th Edition)
Hugh D. Young & Roger A. Freedman
Chemistry: The Science in Context 5th Edition
Thomas R. Gilbert & Rein V. Kirss & Natalie Foster & Stacey Lowery Bretz & Geoffrey Davies
Calculus: Early Transcendentals
Jon Rogawski & Colin Adams & Robert Franzosa