治疗咳血肝火犯肺证，应首选
A．百合固金丸 B．泻心汤 C．泻白散 D．知柏地黄丸 E．龙胆泻肝汤
参考答案：C
128. I don't think she is right, so her words of advice were________on me.
A．wasted
B．useful
C．helpful
D．Effective
膜式煤气表的“G2.5”是什么意思？它的流量范围多大？
