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An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it.
2018年12月四级真题（第三套）阅读 Section B
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At McDonald's, customers will spend on average 3 minutes and 9 seconds from the time they place their orders until they receive their food.
2018年6月四级真题（第一套）听力 Section A
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five minutes after that, we placed either bacon or bread on the surface for 5, 30 or 60 seconds,and then measured the number of bacteria transferred to the food.
2018年12月四级真题（第三套）阅读 Section B
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It depends on just how many bacteria can make it from floor to food in a few seconds and just how dirty the floor is.
2018年12月四级真题（第三套）阅读 Section B
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That's about 10 seconds more than the industry average — and a lot slower than a decade ago, according to the study, which was commissioned by QSR, an industry trade publication.
2018年6月四级真题（第一套）听力 Section A
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They reported bacteria were transferred from the tiles to the cookies within five seconds, but didn't report the specific amount of bacteria that made it from the tiles to the food.
2018年12月四级真题（第三套）阅读 Section B
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We found that the number of bacteria transferred to either kind of food didn't depend much on how long the food was in contact with the contaminated surface——whether for a few seconds or for a whole minute.
2018年12月四级真题（第三套）阅读 Section B
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You may have heard some of the fashion industry horror stories: models eating tissues or cotton balls to hold off hunger, and models collapsing from hunger-induced heart attacks just seconds after they step off the runway.
2016年12月四级真题（第二套）阅读 Section C