开放英语4单元(共12页).doc
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7、 (1)回答a lot of the foods they eat every day, (2)回答bread, ham and cheese, have been altered by using new technology. Food can be changed. It can be made to taste (3)回答or to look different carrots can be made to taste of chocolate and apples can be made redder. Some food that appears the same has been
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