Given a desire for positive GMO labels, more people_________oppose GMO.
A.on high income B.in their middle age C.on middle income D.with high levels of education正确答案C
Given a desire for positive GMO labels, more people_________oppose GMO. 
Given a desire for positive GMO labels, more people_________oppose GMO.
A.on high income B.in their middle age C.on middle income D.with high levels of education正确答案C
