It is generally accepted that ________ boy must learn to stand up and fight like ________ man.(2011·全国)

A．a；a

B．a；the

C．the；the

D．a；/

饲料和饲料添加剂企业生产的未经检验的产品出厂销售，应当经过质量负责人的批准，方可销售。