问题
单项选择题
图示引起弓形虫病的病原体，其终末宿主是()
A．鸽子
B．人
C．鸟类
D．猫及猫科动物
E．有蹄类动物
答案
参考答案：D
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图示引起弓形虫病的病原体，其终末宿主是()
A．鸽子
B．人
C．鸟类
D．猫及猫科动物
E．有蹄类动物
参考答案：D
| Cloze test. | |||
| On a large mountain, there is an eagle's nest(鹰巢). The 1 has four large eggs in it. One day after earthquake (地震) one of the eggs 2 down the mountain, to a chicken farm. A hen takes care of the egg 3 it was her own. Later, the egg cracks (裂开) and a beautiful eagle hatches (孵出来). 4 , however, the eagle thinks he is nothing 5 a chicken, because he has a hen for a mother. The eagle loves his home and family, 6 his spirit (心灵) cries out for more. While playing a game with 7 chickens one day, the eagle looks into the sky and sees several big birds. 8 are eagles. "I 9 I could fly like those birds," he cries sadly. The chickens all 10 him. "You cannot fly with those birds. You are a chicken and chickens cannot fly," they say. The eagle 11 staring into the sky. He dreams that he could be with the birds, his real family. Each time the eagle talks about his 12 , the others reply coldly:"You cannot do that." That is 13 the eagle learns to believe. The eagle, after a while, 14 dreaming and continues to live his life 15 a chicken. | |||
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