剂量小的药物或细料药填充硬胶囊时,一般要过()
A.3号筛
B.4号筛
C.5号筛
D.6号筛
E.7号筛
参考答案:D
About seventy percent of the earth with water.
A.is covering
B.is covered
C.are covering
D.are covered
土壤质地