药品生产、供应、检验和使用的主要依据是()
A.GLP
B.GMP
C.药典
D.药品管理法
E.GAP
参考答案:C
A.若A为金属单质,则D为难溶性碱
B.A只能为非金属单质
C.若A为非金属单质,D为弱酸,则A可能为碳
D.若A为非金属单质,D为强酸,则A一定为硫
The()into the fire accident was carried out by two policemen.
A.question
B.doubt
C.investigation
D.information