the satisfaction of our customers, the products worked very well. A. WithB. ForC. AtD. To

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A. With
B. For
C. At
(答案→)D. To
解析：考查介词。本题考查短语to the satisfaction of sb = to one’s satisfaction令某人满意的是。句意：令我们顾客满意的是，产品运行的非常的好。