A sound scientific theory should be one that ____________
·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

答案

单选题
·The way he uses his tools.
·the difference between scientists and ordinary people
·works not only under one set of conditions at one time, but also under the same conditions at other times

出自：青书学堂 >> 运营管理
 济南大学继续教育学院

A sound scientific theory should be one that ____________·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

A sound scientific theory should be one that ____________
·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