50、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 signals on color Doppler ultrasound images is:（）A．亮度提高 Brightness increaseB．亮度降低 Brightness decreaseC．亮度不变 Brightness unchangedD．都不对 All are wrong
50、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 signals on color Doppler ultrasound images is:（）
A．亮度提高 Brightness increase
B．亮度降低 Brightness decrease
C．亮度不变 Brightness unchanged
D．都不对 All are wrong
参考答案和解析
亮度提高 Brightness increase
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