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题库 / Prep2012-SC-24
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
m
AE、cost are单复数，主谓不一致
B、ok
C、定语arising from vs. 后and with the development无并列关系
E、of所有格表定语，语意错
of有拥有的含义，注意单复数
考点：1/语法形式上平行；2/单复数