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题目内容
（运营管理）
Several times, Bilott had eveworked ocases with DuPont lawyers; however, __________ his grandmother, he agreed to meet the farmer.
·as a favor to
·for the sake of
·by the means of
·as a result of
·as a favor to
·for the sake of
·by the means of
·as a result of
参考答案
