______ management is one of the factors which will lower production cost.A、Effec

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问题 ______ management is one of the factors which will lower production cost.

选项 A、Effective
B、Efficient
C、Sufficient
D、Inefficient

答案 A

解析同义和词形辨析。effective指“有效果，有效力”，既然要降低生产成本，所以必须是有效果的管理。efficient指“(人)有能力，有效率”；sufficient指“充足的”；inefficient指“低效率，无用的”。

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