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问题 单项选择题

确诊伤寒的依据是( )

A．大便培养伤寒杆菌阳性
B．胆汁培养伤寒杆菌阳性
C．肥达反应阳性
D．血培养或骨髓培养伤寒杆菌阳性
E．周围血嗜酸性粒细胞减少或消失

答案

参考答案：D

改错题

I passed all the other course that I took at my university, but I could never pass botany. This was why all botany students had to spend several hours a week in a lab look through a microscope at plant cells, and I could never see through a microscope. This was used to make my professor angry. “I can’t see everything, ” I said. Then he began patient enough to explain how to see through it, but I still couldn’t make it. At last we tried it with every adjustment of the microscope known to men. With my pleasure, I saw something and drew it quickly on the paper. “What’s that?” my professor asked. “That’s what I saw.” I answered. “No, you don’t!” he shouted, and he bent over and looking into the microscope. “That’s your eyes! You’ve fixed the lens so that it reflects! You’ve drawn your eyes!”
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单项选择题

下列传染病中，属于法定甲类传染病的是（）

A.流行性腮腺炎

B.风疹

C.黑热病

D.霍乱

E.流行性感冒
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