下列哪项属于胸痹的病机（）
A.气血失和
B.寒热错杂
C.气血两虚
D.本虚标实
E.上盛下虚
参考答案：D
When asked to try on new coats of different colors and styles, few men have the _____ with this treatment.
A．patience
B．interest
C．decision
D．Preference
泵效
