2. 外语
  3. The loss of perishable goods in transit means lost revenue. However, a number of technologies and new solutions can take the fea

The loss of perishable goods in transit means lost revenue. However, a number of technologies and new solutions can take the fea

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问题 The loss of perishable goods in transit means lost revenue. However, a number of technologies and new solutions can take the fear out of shipping perishable goods such as seafood products and meat. A team of scientists has developed a color indicating label, which______the freshness of meat and seafood products.
This battery-powered label uses a special sensor which includes chemical materials ______to the inside of the plastic wrap. This reacts with the gas levels in the package, which changes depending on the freshness of the food.
The freshness of the food inside can ______ without opening the food package by using special sensors that look like bar-code reader.
选项 A、reacted
B、designed
C、attached
D、remained
答案C
解析 词汇：分词词汇1．原文意思是“通过塑料包装内附加的传感器可以感知”，空格处应填入一个和后面介词to相配的词。2．react和remain是不及物动词，不应使用过去分词，因此(C)attached为正确选项。
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