B2 LISTENING TESTS7 questions · 全部题目
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MP3According to the video,...
Before the 20th century,...
Many supermarkets added labels with dates that indicated...
Manufacturers set the date to use on food labels...
What kind of products can last longer, according to the video?
Ready-to-eat salads, deli meats, and unpasteurized cheeses can...
According to a 2019 survey,...
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