第34题: [单项选择]The phrase "back off" in boldface in this contest probably means ______. A. to keep promise of fulfilling the contracts B. to avoid making as many deals as before C. to refrain from doing business with schools D. to yield in claims while making a contract 参考答案:D 答案解析:第三段说学校是与当地的小批发商(local bottlers)签约的,总公司只能要求(而无法保证)这些小批发商签约时做些让步。所以正确答案是D(签约时降低要求)。