建设行政主管部门，对工程勘察、设计持证单位的资质实行( )。
A．资质年检制度
B．资质评定制度
C．资质考核制度
D．资质抽查制度
参考答案：A
______________ that my dearest friend would play a trick on me in front of all my students.
A．Never I thought
B．Never did I think
C．I thought never
D．Never thought I
床上擦浴的实施
