问题
单项选择题
某养殖场发生疫情，主要表现为产蛋鸡产蛋急剧下降，部分鸡死亡，剖检发现腺胃 * * 出血，直肠出血，肠道黏膜出血等。
该病最可能是
A．传染性支气管炎 B．禽流感 C．新城疫 D．产蛋下降综合征 E．鸡败血性支原体
答案
参考答案：C
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某养殖场发生疫情，主要表现为产蛋鸡产蛋急剧下降，部分鸡死亡，剖检发现腺胃 * * 出血，直肠出血，肠道黏膜出血等。
该病最可能是
A．传染性支气管炎 B．禽流感 C．新城疫 D．产蛋下降综合征 E．鸡败血性支原体
参考答案：C
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| I was very fond of hunting when I was a young man. In the autumn of 1915, I was 1 in the northwest of India. One evening, after hunting in the forest all 2 , I was returning alone to the place where I had 3 up my tent. I was tired 4 hungry. It was getting 5 and darker, and I was walking slowly 6 a narrow path. On my right was a wide river; on my left, a 7 , dark forest. All of a 8 I saw two green eyes looking at me from among the trees. I knew it 9 be a man-eating tiger. The tiger was getting ready to 10 on me. My heart 11 . What could I do? Should I jump 12 the river and hope to save my life 13 swimming? I looked to the 14 . In the river there was a 15 crocodile waiting to welcome me with its mouth 16 open. I was so 17 that I shut my eyes. And I thought it would be the end of my 18 . I heard branches moving 19 the tiger roared (咆哮) and jumped. 20 then I opened my eyes. What do you think had happened? The tiger had jumped right over me and now in the jaws (嘴) of the crocodile. | ||||
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