粉末药材制片后，显微镜下可以观察到淀粉、草酸钙结晶、石细胞、维管束、韧皮部。
参考答案：错
I'm not a little tired today after giving the room a thorough cleaning and I have never had today. [ ]
A. as a tiring day
B. as tiring a day as
C. tiring as a day as
D. day as a tiring as
除另有规定外，儿科用散剂的粉末细度为（）。
A.粗粉
B.中粉
C.细粉
D.最细粉
E.极细粉
a thorough cleaning and I have never had today. [ ]