呈不规则的扁平块状，一面有多数圆形 * * 状突起的药材为

A．炉甘石
B．赭石
C．滑石
D．自然铜
E．信石

--- Jenny, you have got the first prize in the competition. Congratulations.

---                .

A．That’s my good luck

B．Oh, it’s nothing

C．Thank you

D．You can do it , too