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【单选题】
美国著名管理学家西蒙说：“管理就是决策。”“在一个企业内，如果投资占l分，科技占3分，管理则占6分。”采用科学管理能够提高企业经济效益，这说明（） ①人为事物的联系比自在事物的联系具有优越性 ②人能够改变规律服务于自己的需要 ③统筹全局能实现整体利益的最大化 ④系统具有内部结构的优化趋向特征A.
①②
B.
②③
C.
①④
D.
③④
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