Lord Kelvin once said “ W hen you can measure what you are speaking about, and express it in _______, you know something about it. ” A. numbers B. testimony C. examples
正确答案：A
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Lord Kelvin once said “ W hen you can measure what you are speaking about, and express it in _______, you know something about it. ” A. numbers B. testimony C. examples
正确答案：A
