2. 外语
  3. ______ management is one of the factors which will lower production cost.

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

admin2012-03-02  70
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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大学英语四级

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