在治疗瘀血病证时，常配以行气、补气药，其理论根据是（）
A.气能生血
B.气能行血
C.气能摄血
D.血能载气
E.血能生气
参考答案：B
In The Principles of Language Study (1921), Palmer put forward nine fundamental principles of good language teaching and learning, of which ______ was the first and most important.
A. reinforcement and response B. habit formationC. form and meaning D. meaning and situation
老年躁狂发作患者的情感特点是
A．心境高涨
B．情绪不稳
C．欣快感
D．易激惹
E．情感倒错
