砂轮的硬度是指砂轮表面上的磨料在外力作用()。
参考答案:脱落的难易程度
Why don't you arrange your trip you did last summer? [ ]
A. in the way which
B. the way which
C. the way
D. by the way that
药物较不稳定,遇湿热分解,可压性、流动性均不太好且量较大的是( )。
A.湿法制粒压片B.结晶药物直接压片C.干法制粒压片D.粉末直接压片E.空白颗粒压片