问题
单项选择题
病原体侵入机体后，仅引起机体发生特异性的免疫应答，而不引起或只引起轻微的组织损伤，临床上不显出任何症状、体征与生化改变，只能通过免疫学检查才能发现。此种情况是：
A．病原体被清除
B．隐性感染
C．显现感染
D．病原体携带者
E．潜伏性感染
答案
参考答案：B
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病原体侵入机体后，仅引起机体发生特异性的免疫应答，而不引起或只引起轻微的组织损伤，临床上不显出任何症状、体征与生化改变，只能通过免疫学检查才能发现。此种情况是：
A．病原体被清除
B．隐性感染
C．显现感染
D．病原体携带者
E．潜伏性感染
参考答案：B
| 根据对话内容，从下面方框中选择适当的词语填空，使对话内容完整正确。 | |
Wendy: What did you have? Sally: We had a lot of delicious food. One of the dishes 1 the meat of a snake. Wendy: A snake? Sally: Yes. At first, I 2 eat it, but my father encouraged me to have a try. Wendy: Many endangered animals have 3 because people eat them. I don't think that's right. People should protect wild animals. Sally: We don't hunt snakes in the wild. These snakes 4 on the farms so that they can be sold or used as food. Wendy: But some people will still hunt wild animals if such dishes are on our dining table. Sally: I 5 you. I won't eat such a dish any more. |