彩色多普勒是使用什么方法检测血细胞的动态信息()
A．增益
B．STC(TGC)
C．速度
D．FFT技术
E．MTI
参考答案：E
John promised his doctor he________not smoke, and he has never smoked ever since.[ ]
A. might
B. should
C. could
D. would
患者纳呆腹胀，胁肋胀痛，便溏不爽，泻后痛减，每遇气恼则泄泻加重，舌苔白，脉弦。其证候是
A．肝气郁结B．脾气虚弱C．肝胃不和D．肝脾不调E．脾气下陷
