Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods. Usually one bacterium is sufficien

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问题 Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods.
Usually one bacterium is sufficient to cause illness.

选项 A、Y
B、N
C、NG

答案B

解析 参见第二段中的:Usually,it takes large numbers of food poisoning bacteria to be present in food in order to cause illness.原文中“large numbers of..bacteria”与题目中“one bacteria”不符。
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