检验检疫机构依法对法定检验检疫对象实施检验检疫，按规定收取检验检疫费，并出具财政部规定使用的单据。( )
参考答案：对
My neighbour devoted his spare time ________ ancient coins. [ ]
A. to collect
B. to collecting
C. on collecting
D. in collecting
HLA-I类基因区不包括
A．HLA-B
B．HLA-C
C．HLA-A
D．HLA-H
E．HLA-DR
