题目

听下面一段独白，回答以下小题。 （1） What does the speaker want to share? A . The math experts. B . The history of a math symbol. C . The ways to learn math. （2） When did the name Pi appear? A . In the 16th century. B . In the 18th century. C . In the 19th century. （3） What is special about the Pi Day? A . It's also Larry Shaw's birthday. B . It can date back to 2006. C . It has a custom of eating pie. 答案： B B C

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