档案材料属于（）。
A.一级文献
B.二级文献
C.三级文献
D.标准文献
参考答案：B
_____ that he isn't adequate to the present job, he devotes all his spare time to studying professional
knowledge. [ ]
A. Concern
B. To concern
C. Concerned
D. Concerning
国家对麻醉药品和精神药品实行定点（）
A.需求制度
B.种植制度
C.经营制度
D.储存制度
E.运输制度
