大学英语六级考试巅峰训练一本通 Model test 2

[28:49.52]than conventionally grown foods. 
[28:52.01]But in many cases consumers are misled if they believe 
[28:55.29]organic foods can maintain health and provide better 
[28:58.11]nutritional quality than conventionally grown foods. 
[29:01.93]So there is real cause for concern if consumers, 
[29:05.34]particularly those with limited incomes, 
[29:07.93]who distrust the regular food supply and 
[29:10.32]buy only expensive organic foods instead.