A-A+
and it becomes more difficult all the time to
问题详情
and it becomes more difficult all the time to know which things on the packaging 6 of processed food are helpful or harmful.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：
【解析】选[B]。空前的形容词packaging表明此处应填一名词。此句是说，我们很难知道加工食物的包装袋上所标明的成分哪些是有益的哪些是有害的。根据常理，加工食物的包装袋上一般都会标明食品的成分，故答案为[B]labels。
