flow

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flow

1.According to statement of cash flow，what are the sources of cash flow？2.当血流速度增快，流量加大时，彩超图像上血流信号的特点是：（）When both the velocity of blood flow　and the flow rate increase, the characteristic of blood flow 3.供应链只包含信息流和物流。Supply chain contains only contains information flow and logistics flow.