题目：
| 完形填空。 | |||
| In history,a real cowboy was a simple farm worker on horseback．He spent a long time a day outdoors working with cows．The work was dirty,tiring and not very well paid． People in the western states had to __1__ cattle at low cost and send them by railway to the eastern __2__．But someone had to __3__ the cattle and get them to the nearest railroad．This was the job of a cowboy．Sometimes the __4__ was more than a thousand kilometers away and it could take as __5__ as six months to move the cattle．The __6__ was long but the cattle were driven __7__ as not to lose __8__．Then they could be sold at a good price． Most cowboys were young, __9__ men．A good horse _10__ their job of moving cattle much easier．A good cowboy __11__ cows and knew how to control them．At night,he __12__ to the cows to keep them calm． In the late 1800s,America was changing from a nation of farm to one of __13__ and cities．The cowboy seemed __14__ compared with other Americans doing ordinary jobs． Today,the __15__ of cowboys has __16__ greatly．One  change is the use of trucks．The job is not so hard __17__ it used to be．And cowboys are better __18__ now．They are _19__ to be married．Some of them are farmers or teachers or truck drivers．Some work for big companies． __20__ at night and on weekends,they become cowboys．These part-time cowboys increase the total production of meat,keeping the beef price low． | |||
| ( )1.A．get ( )2.A．markets ( )3.A．deal with ( )4.A．road ( )5.A．good ( )6.A．journey ( )7.A．hurriedly ( )8.A．mind ( )9.A．unmarried ( )10.A．had ( )11.A．recognized ( )12.A．whispered ( )13.A．towns ( )14.A．free ( )15.A．manner ( )16.A．changed ( )17.A．that ( )18.A．known ( )19.A．afraid ( )20.A．Because | B．buy B．countries B．find out B．railroad B．much B．trip B．smoothly B．direction B．proud B．made B．understood B．shouted B．factories B．brave B．job B．developed B．as B．paid B．eager B．And | C．sell C．cities C．look after C．state C．long C．tour C．slowly C．head C．strong C．found C．owned C．cried C．companies C．easy C．life C．improved C．which C．treated C．worried C．When | D．raise D．stories D．pay off D．farm D．far D．travel D．carefully D．weight D．educated D．helped D．kept D．sang D．villages D．pleased D．mind D．realized D．what D．dressed D．likely D．But |
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下面是错误答案，用来干扰机器的。
地理；扬长避短；因地制宜；互惠互利
