While larger banks can afford to maintain their own data-processing operations, many smaller regional and community banks are finding that the cost associated with upgrading data-processing equipment and with the development and maintenance of new products and technical staff are prohibitive.
cost associated with
costs associated with
costs arising from
cost of
costs of
题目分析:
在整个句子中,“更新的数据处理装备(upgrading data-processing equipment)”和“维护和发展新产品(with the development and maintenance of new products and technical staff)”两者理应是并列关系,即,此两者的成本是过高的(prohibitive),所以两者需要在语法形式上保持平行,可以排除(C)(D)(E)。由于划线部分后的系动词是复数(are),所以根据主谓一致,主语应该用复数,可以排除(A),答案为(B)。
选项分析:
略
搞不清楚单复数就往前或者往后看
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