2. 外语
  3. Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods. Samonella’s onset may take 6 to 72

Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods. Samonella’s onset may take 6 to 72

admin2009-09-12  39
问题 Nowadays, people’s lifestyles are changing, which has resulted in the demand for fast foods.
Samonella’s onset may take 6 to 72 hours to happen and the symptoms may last longer than 24 hours.
选项 A、Y
B、N
C、NG
答案A
解析 依据文中小标题，我们可以很快找到这个部分：6—72 hours after．．．Symptoms can last from．．．注意“longer than 24 hours”与原文内容是相符的。
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大学英语四级

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