给下列单词分类。(填序号)

1.yellow      2.skirt       3.brown        4.blouse         5. socks        6.bus          7.taxi    

8.blue         9.bicycle    10. green      11. sweater    12. orange      13. pants    14. car

A. 交通工具                                                                                                          

B. 衣服                                                                                                              

C. 颜色                                                                                                              

怎样做好公文的催办与查办工作？试比较公文催办与查办工作的区别。