Each American high school have different classes that they teach. My school teaches German, French, Sign language, Spanish, and Aeronautics. But, the basics are English, Math, P.E., History, and Science.

有一位网页的回答出现语法错误。应该是Each American high school [has]，不知该网友是不是以英语为母语的

用word2003可以检测出来

What do students in American high school study about math?

Do they study functions?
Do they study arithmetic/geometric sequence?
Do they study trigonometric functions?
Do they study to prove something about geometry?

http://answers.yahoo.com/question/index?qid=20130606044637AAQWHIh

—— The question I asked just now

回复：6楼

This is my second question asked on Yahoo.

有关等差数列（arithmetic sequence）的提问：

http://answers.yahoo.com/search/search_result?scope=all&category=0&fltr=_en&question_status=all&answer_count=any&date_submitted=all&crumb=klDlYT%2FCX8%2F&p=arithmetic+sequence&orderby=rank&filter_search=%3CSPAN%3E%3CSPAN%3E%3CSPAN%3E%3CSPAN%3EApply%3C%2FSPAN%3E%3C%2FSPAN%3E%3C%2FSPAN%3E%3C%2FSPAN%3E&clear_search=%3CSPAN%3E%3CSPAN%3E%3CSPAN%3E%3CSPAN%3EClear%3C%2FSPAN%3E%3C%2FSPAN%3E%3C%2FSPAN%3E%3C%2FSPAN%3E&filter_search=true#add-saved-search

   Nǐ 你xǐhuān 喜欢chī 吃Zhōngcān, 中餐，háishì 还是Xīcān ? 西餐？  
  
-   Wǒ 我fēicháng 非常xǐhuān 喜欢chī 吃Zhōngcān. 中餐。  
  
-   Nǐ 你zuì 最xǐhuān 喜欢chī 吃shénme ? 什么？  
  
-   Wǒ 我zuì 最xǐhuān 喜欢chī 吃jiǎozi. 饺子。  

中餐   Zhōngcān   (n)   Chinese food  
西餐   Xīcān   (n)   Western-style food  
非常   fēicháng   (adv)   very, extremely  
最   zuì   (adv)   most, -est  
饺子   jiǎozi   (n)   dumpling  

囧死了