断面显云锦花纹的药材为
A．虎杖
B．大黄
C．何首乌
D．商陆
E．甘草
参考答案：C
Will you please tell us _______? [ ]
A. how can we use it
B. how could we use it
C. how we can use it
D. how we could use it
白芥子可用于
A．肺虚久咳B．阴虚火旺C．消化道溃疡D．消化道出血E．痰湿咳嗽
