题目内容
如果质点系的质心速度为零,则质点系对任一固定点的动量矩都一样。( )
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Big data refers only to structured data.
Big data can serve as the basis for innovation.
The ever-increasing volume, variety and velocity of information form big data.
The increase in data volume is attributed to ever-increasing transaction-based data, text data and sensor data etc.
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