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您好：你可以參加的化學(xué)競(jìng)賽有加拿大滑鐵盧化學(xué)挑戰(zhàn)賽，USNCO美國(guó)化學(xué)奧林匹克競(jìng)賽，生物競(jìng)賽可以參加的有USABO和BBO。

借花獻(xiàn)佛：“The USA Biology Olympiad, or USABO, is a prestigious biology competition for high school students in the United States. Launched in 2002, USABO's mission is to recognize and empower up-and-coming life science students through rigorous biology exams and international networking opportunities.”

您好：

生物方面有 Brain Bee 比賽，化學(xué)有：U.S. National Chemistry Olympiad

奧賽里面，除了數(shù)學(xué)不限美籍或永居外（但入選國(guó)家隊(duì)已排除非國(guó)籍或永居考生），其他都限美籍或永居才能參加。