根据短文内容及首字母提示填写单词，使短文完整、连贯。

       Do you know about agricultural (农业的) tourism? It is for people who want to visit farms for f  1  , education or just to get away from the city. Agricultural tourism is p  2   in the United States. It can help

farmers make more m  3   and become richer. Farmers can sell farm products (产品) to visitors. They

can o  4   horseback riding and take visitors a  5   their farms. Children can learn a lot about farm animals.

       Randy Nixon is a farmer. He says offering service and entertainment on farms can help b  6   the farmers and the country. Nixon's Farm is a good e  7   of this. It not only grows corn and soybeans (大豆)

there, but also h  8   business meetings, weddings and other events. Mrs Nixon is willing to c  9   for

visitors. Her recipes are very popular with guests. Randy Nixon says the business has become very s  10  .

车身立柱下端是主要的锈蚀部位，一般锈蚀面积超过（）时，应该采用局部截换的工艺方案。

A．1/2

B．1/3

C．1/4