题目

— Why don't you like winter in Beijing?— Because it is winter in Guangzhou. A . as cold as B . much colder than C . not so clod as D . not colder than 答案：B观察按下列规则排成的一列数：11，12，21，13，22，31，14，23，32，41，…在数列当中，从左起第m个数记作F（m），当m=______时，F（m）=22011．