我国药典规定片剂的重量差异限度,片重大于0.3克的片剂的重量差异限度为()。
A.±7.5
B.±5.0
C.±9.0
D.±2.5
E.±8.5
参考答案:B
Where is the cat? I saw it _____ in the tree just now. [ ]
A. plays
B. played
C. to play
D. playing
《素问·上古天真论》中指出男子“天癸至,精气溢写,阴阳和,故能有子”的年龄大约是三八()