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题目内容
（运营管理）
A sound scientific theory should be one that ____________
·<!--[endif]-->works not only under one set of conditions at one time, but also under the same conditions at other times
·does not allow any changes eveunder different conditions
·cabe used for many purposes
·leaves no room for improvement
·<!--[endif]-->works not only under one set of conditions at one time, but also under the same conditions at other times
·does not allow any changes eveunder different conditions
·cabe used for many purposes
·leaves no room for improvement
参考答案
