问题
单项选择题
6月某食堂供应蛋炒饭引起近百人食物中毒,发病者潜伏期约8小时,以腹痛、腹泻为主要症状,不发热,病程为16~36小时,预后良好。经卫生学调查发现蛋炒饭使用的是前一天的剩饭。
其中毒机制
A.细菌活菌
B.细菌内毒素
C.细菌肠毒素
D.细菌活菌+内毒素
E.细菌活菌+肠毒素
答案
参考答案:E
6月某食堂供应蛋炒饭引起近百人食物中毒,发病者潜伏期约8小时,以腹痛、腹泻为主要症状,不发热,病程为16~36小时,预后良好。经卫生学调查发现蛋炒饭使用的是前一天的剩饭。
其中毒机制
A.细菌活菌
B.细菌内毒素
C.细菌肠毒素
D.细菌活菌+内毒素
E.细菌活菌+肠毒素
参考答案:E
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In my spoken English class, I asked the students about their university life. To my surprise, (1)_______. After their highly controlled (控制) high school lives, they were having difficulty getting used to (习惯) the free time in the university. When I asked them to describe their high school lives, (2)_______ they got up at six in the morning and studied until ten or even later at night. Most of this time was spent doing lots of homework. When they entered the university, in my opinion, (3)_______ to spend all their waking hours studying. They should also take an active part in social activities. They should learn to divide their time outside of class between sport sand clubs. What's more, (4)_______ watching TV and chatting with their roommates. But what surprised me most was that many of them did not seem happy because (5)_______. They felt that they should be doing something else what ever they were doing. That's why they were not happy. To those students, my advice is: Get used to it and learn to make decisions for yourselves.
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