咳血之肝火犯肺证的选方是（）
A.桑菊饮
B.泻白散
C.玉女煎
D.黛蛤散
E.百合固金汤
参考答案：B, D
The web is fantastic at many things, e-mail, e-commerce, for example. But _____ your name is Amazon Or Google, making money has proved hard.
A．if
B．although
C．unless
D．as
为了观察清洗效果，在清洗时，通常应安置沉积物管样监视片，这些监视片常安置在什么部位？
