1990年开始,我国有关部门开始生产“绿色食品”。()
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农业、农村、农民问题关系党和国家事业发展全局。()
A. 正确
B. 错误
生产农药和进口农药必须进行登记。()
A. 正确
B. 错误
农业产业一体化是“农工贸一体化、产供销一条龙”经营的简称。()
A. 正确
B. 错误
A.have writtenB.have been writtenC.were writtenD.are written
A. have written
B. have been written
C. were written
D. are written