问题
单项选择题 A1型题
感染病原体后不出现临床表现,但产生了特异性免疫的是()
A.显性感染
B.潜在性感染
C.隐性感染
D.病原携带状态
E.病原体被消灭或排出体外
答案
参考答案:C
解析:隐性感染又称亚临床感染,病原体只引起特异性免疫应答,不引起或只引起轻微的组织损伤,无临床症状,只能通过免疫学检查发现。
感染病原体后不出现临床表现,但产生了特异性免疫的是()
A.显性感染
B.潜在性感染
C.隐性感染
D.病原携带状态
E.病原体被消灭或排出体外
参考答案:C
解析:隐性感染又称亚临床感染,病原体只引起特异性免疫应答,不引起或只引起轻微的组织损伤,无临床症状,只能通过免疫学检查发现。
用方框中所给单饲的适当形式完成短文。 | |
from February l2th to 28th , 2010. A young girl 2._____Zhou Yang of 3._____ 1500 meters short-track speed(短道速滑)skating team 4._____part in the Olympics. It 5._____her first winter Olympic experience. But she 6._____the gold medal in 1500 meters short-track;speed skating on February 20. People is made 7._____Zhou Yang by her wonderful performance on the international stage in recent years, winning the silver(银)and bronze(铜)medals in the2008 and 2009 world championships respectively. In the past two seasons, she 8._____the top seat in world rankings for the women's 1500 short track. Zhou Yang who 9._____in 1991, comes from Changchun. When she 10._____ after the match, she was very excited ,and she hoped she would provide better lit for her parents,because her mother isn't very healthy. Let's wish her better future! |