四级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.
一个城市食物神话认为,如果食物在地板上停留几秒钟,污垢和细菌就不会有太多机会污染它。
2018年12月四级真题(第三套)阅读 Section B
四级Those who did well on the memory test had an increase in levels of immunoglobulin A, an antibody that’s the body’s first line of defense against germs.
那些在记忆测试中表现良好的人,免疫球蛋白A的水平增加了,免疫球蛋白质A是人体抵抗细菌的第一道防线。
2005年12月大学英语四级(CET-4)真题
四级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.
一个城市食物神话认为,如果食物只在地板上停留几秒钟,污垢和细菌就不会有太多机会污染它。
2018年12月大学英语四级考试真题(第3套)
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